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概率论与数理统计练习册-第二章答案

j elationshi p betw een Governme nt and busine ss. T he "two se ssi ons", G eneral Se cretary of "Pro", "clear" the wor d succi nctly sum marized t he ne w relationshi p betw een G overnme nt and busine ss, as pure politi cs, res hapi ng the politi cal relationshi p s pecifie d in the directi on. District lea ders i n ha ndl ing politi cal and busi ness relati ons, engage i n trading power for money, a nd finally stumble d, we a le sson, always kee p in mind that "Pro", "cle an" practi cing "Pr o", "clear". "Pro" is to ope n a sincere e ngagement with private enterpri se to help s olv e pra ctical difficulties ; " Clear "is to clarify the Divis ion of power, exercise d in a ccor dance wit h, private entre preneurs wit h innocent purity, not abusi ng power for pers onal gain, not to engage i n trading power for money. Thir d, in or der to maintai n fairnes s and j usti ce. Fairne ss and justice is t he lifeline of the rule of la w, is the best development envir onment. Curre ntly, l ax law e nforceme nt and t he judicia l sect or in our region als o exist to varying degrees, law z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r enforceme nt departme nts and individual window unit s power for pers onal gai ns and bri bes , thick frie nds, relati ons, human ca ses, money ca ses i n whi ch ser iously infringe on the legitimate rights and interests of enterpri ses and pe opl e. Es peci ally some law enforceme nt and ins pe ction for profit purpose s, del iberately looking for cor porate loophole s, found dire ctly under t he ticket does not give business impr ovement opport unities. We recruit a compa ny doesn't ea sily, cultivati ng a busine ss more difficult, never for pers onal gain, systematic harassment, card, la st che cked to check to get the e nterprise colla pse d. To guarante e the legitimate rights a nd i nterests. Always proceed from the overall situati on of reform and devel opme nt of services, fully consider t he characteristi cs of pr oducti on a nd manageme nt in non-publi c enter prise s and social be nefits, a n accurate grasp of legal limits, pr otect the e nthusiasm of entre preneurs a nd pr actitioners i n innovation and entrepr ene urshi p, e nha nci ng expectations a nd confidence. To prom ote strict e nforcement . Strengthe ning law e nforceme nt procedures, im prove law e nforcement performance evaluati on, strengthe ning t he s upervi sion of law enforcement, expl oration and practi ce of risk control mecha nism of law e nforceme nt to further sta ndardize the s ocial se curity, urba n manageme nt, road traffic admi nistrative law enfor cement, effectively free, extens ive law-e nforceme nt and lax enforceme nt of law enfor cement a nd ot her iss ues . To uphol d justi ce. Justi ce is t he last line of Defense t o safeguard fairness a nd j ustice , to unequivo cally s upport the court s and procuratorates i nde pe nde ntly exercise level . .. Judicial a ctivities were rampa nt, must not be all owe d to run, favors, mone y, must not be a llowe d to knowingly vi olate the mis carriage, vi olations of the legitimate rights a nd i nterests of the mas ses must not be allowe d to a bus e of powe r, to make forest mass ca n be felt in every j udi cial ca ses i n equity and j usti ce. Four to dee pe n grass-r oots governance a ccording to la wchain do long, a nd put scale big. To s erve the development of enter prises . Duocuo s imultane ously improvi ng servi ce efficiency, buil d better publi c servi ces platform, enhance work efficie ncy, initiative to hel p busine sses solve the proj ect pr oce dures , financing l oans, iss ues such as la nd -use approval, re duce operating costs, busi nes s travel light and enhance the confi dence to ov ercome all ki nds of difficultie s and the Foundation, real entre prene urial pa ssion play e ntrepre neurs hip, enhance the i nternal vitality and creativit y. SI XING a n constr ucti on, promoting t he rule of law, tries to make the tra nsformation of forest devel opment XI Ge neral Secretary stre sse d, to reinvig orate Northeast China, optimize d devel opme nt environment is very important. Envir onme nt of rule of law most gather Moss, the most conducive to devel opme nt. Impr oving the lea ding cadre s ' using t he method of thought a nd the rule of law A dministration work, problem -s olving, the a bility to pr omote the devel opment , is the key to pr omoting t he rule of law. The law may affect the efficiency of out of the path of devel opment w ill be more smoot h, won devel opme nt gains w ill be s ustai ned, a nd e nd wit h greater efficiency. Leadi ng ca dres at all l evels should take the lead i n respect of law la w, abi de by, a nd a ctively foster Soci alist culture, a ctively prom oting the fiel d of multi-lev el governa nce accordi ng to la w, guide the mas ses and cons ciously a bide by the la w, failing to find law, solve t he problem by la w, in a ccorda nce w ith the law prevail. XXX admi nistration by law of leadi ng ca dres do not exist on the r ule of law , law enfor cement, casua l, and vow not to invest ors, the new s core s and other t urmoil. T hese im portant expositi ons on my distri ct create good development e nvironme nt with highly targeted and gui dance, e spe cially the General Se cretary pointed out that the c haos i n my area also exists to varyi ng degree s, s ome even quite seri ous. Lea ding cadres at all lev els must impr ove the development envir onme nt of rule of law as a fundame ntal task, a dhere to t he pr oblem ori ented, soli d and solv e the pr oblems i n the constru ction of rule of la w, to rule t he ne w effect for development envir onme nt improvement s. To hol d "key minority". Lea ders of thi s group, althoug h few in number, but the effect is critical. If a local lea ders take the lea d right a ccor ding to la w, i n accorda nce with the law, the local CPPCC fresh, pragmati c and efficient devel opme nt environment. Conversely, if a local lea ders of ignoring t he law, impunity, not only the political environment will be de stroyed, will have seri ous implicati ons for the devel opme nt environment. Now, s ome leadi ng ca dres lack of awarenes s on the importance of learni ng, that lear n or not does not matter. Thi nk efficiency is too low too much, act a ccordi ng to the proce dur e, than a n executive order getting along with. I n deal ing with com ple x iss ues, often speak of "settling" and "done"; on the iss ue of ha ndli ng letters and visits, l ike to spend money and buy stop a nd sta ble, but di sregard the la w admini stration, i n accordance with the law, t he rule cha in do long, and put scal e big. To serve t he deve lopme nt of enter prises . Duocuo sim ultane ously improving service efficiency, buil d better publi c servi ces platform, enha nce work efficie ncy, i nitiative to hel p busine sse s solve t he pr oject proce dure s, financing l oans, iss ues such as la nd -use approval, re duce operating costs, busi nes s travel light and enhance the confi dence to ov ercome all ki nds of difficultie s and the Foundati on, real entrepr ene urial pa ssion play e ntrepre neurs hip, enhance the interna l vitality and creativity. SI XING an constructi on, promoti ng the rule of law, trie s to make the transformati on of forest deve lopme nt XI General Secretary stress ed, to rei nvigorate Northeast Chi na, optimized development envir onme nt is very importa nt. Environment of rul e of law most gather Mos s, the most conducive t o devel opment . Improvi ng the lea ding ca dres ' using the method of thought a nd the rule of law A dministration work, problem-s olving , the a bility to pr omote the development, is t he key to prom oting the r ule of law. The law may affect the efficiency of out of the path of development will be more smooth, w on development gai ns will be s ustaine d, and end with greater efficie ncy. Leadi ng cadre s at all levels s hould take the lead i n respe ct of law law, abi de by, and actively foster Socialist cult ure, actively promoti ng the field of multi-level gover nance a ccording t o law, g uide t he masse s and cons ciously abi de by t he law, failing to find la w, s olve the problem by law, in accor da nce wit h the law prevail. XXX admini stration by law of leadi ng ca dres do not exist on the rule of la w, law enfor cement, cas ual, and vow not to inve stors, the new score s and other turmoil. T hes e importa nt ex pos itions on my district create g ood devel opment e nvironment with highly targeted a nd g uida nce, e spe cially the General Secretary pointe d out t hat the chaos in my area also exi sts to varying degrees, some even quite s erious. Leadi ng cadre s at all levels must improve the devel opment e nvironme nt of rule of law as a fundamental task, a dher e to the probl em oriente d, solid a nd s olve the probl ems in the construction of rule of law, to rule the new effect for devel opment e nvironment improveme nts. To hol d "key minor ity". Lea ders of thi s group, althoug h few in number, but t he effect is critical. If a local leader s take the lead rig ht accordi ng t o law, in accor dance wit h the la w, the l ocal CPPCC fresh, pragmatic and efficient development e nvironme nt. Conversel y, if a l ocal leader s of ignori ng the law, impunity, not only the politi cal envir onme nt will be destroye d, will have seri ous im plicati ons for the devel opme nt environment. Now, some lea ding cadre s lack of aware ness on t he importa nce of learni ng, that lear n or not doe s not matter. Think efficie ncy i s too l ow too much, act a ccording t o the pr oce dure, t han a n executive order getting al ong wit h. I n deali ng with complex is sue s, often s peak of "settling" and "done"; on the i ssue of handli ng letters and visits, like to spe nd money and buy stop and stable, but disregard the law administration, i n accor dance with t he law, the rul e

第二章

随机变量及其分布
基础训练Ⅰ

一、选择题
1、下列表中( A )可以作为离散型随机变量的分布律。 A) X1 -1 0 1 B) X 2 0 P 1/4 1/2 1/4 P -1/4 C) X3 0 1 2 D) X4 1 P 1/5 2/5 3/5 P 1/4 2、常数 b=( B )时, p k ? A)2 B)1 1 3/4 2 1/4 2 1/2 1 1/2

b (k ? 1,2,?) 为离散型随机变量的概率分布。 k (k ? 1)
D)3

C)1/2

?0, x ? 0 ? 3、设 F ( x ) ? ? x / 2, 0 ? x ? 1 ,则( D ) ?1, x ? 1 ?
A)是随机变量的密度函数 C)是离散型随机变量的分布函数 B) 不是随机变量的分布函数 D)是连续型随机变量的分布函数

4、设 F1 ( x) 和 F2 ( x) 分别为随机变量 X 1 , X 2 的分布函数,为使 F ( x) ? aF 1 ( x) ? bF 2 ( x) 是 某一随机变量的分布函数,在下列给定的各组数值中应取( A ) A)a=3/5,b=-2/5 B) a=2/3,b=2/3 C)a=-1/2,b=3/2 D)a=1/2,b=-3/2
2 5、设随机变量 X ~ N (? , ? ) ,且 P{X ? c} ? P{ X ? c} ,则 c ? ( B )

A) 0

B)

?

C) 0

??


D)

?

二、填空题
1、连续型随机变量取任何给定值的概率为 2、设离散型随机变量 X 分布律为 ? ?

1 ?0 ? 0.2 0.3

2 ? ? ,则 P(X≤1.5) = 0.5? ?

0.5



?0, x ? 0 ? 2 3、设连续型随机变量 X 的分布函数为 F ( x ) ? ? Ax , 0 ? x ? 1 ,则 A = 1 ,X 落在(-1, ?1, x ? 1 ?
1/2)内 的概率为 4 、设 K 在( 0, 0.6 。 5、随机变量 X 的分布函数 F ( x ) 是事件 { X ? x} 的概率。 1/4 。
2

5 )上服从均匀分布,则方程 4 x ? 4Kx ? K ? 2 ? 0 有实根的概率为

jGrass -roots gover nance accor ding to law i s an important foundati on for pr omoting t he constr uction of rule of law, but als o the most basi c devel opme nt environment. De spite my good s ocial order i n General, but there are law -abi ding consci ousne ss, s ocial order is not sta ndar d, regardle ss of faith, Twining visit visit a nd other outstanding problems. We w ant to active ly promote t he field of multi -level gover nance accor ding to la w, pr omote the continuous improveme nt of the s ocial e nvironment. To pr omote universal complia nce . Actively foster the r ule of law culture , carry out law publi city a nd educati on on hone sty and tr ustwort hine ss, guide the masses a nd consci ously abi de by the law, faili ng to find method, problem -solvi ng method, method of gradually changi ng the worl d, he is not looki ng for but some one "uns poken r ules", formed all la w law, a bide by the good atmosphere. To s trengthen t he comprehensive ma nagement of publ ic se curit y. Dee pe ning peace xi ngan constr ucti on, str ongly z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r 形 情 止 禁 律 作 以 可 民 公 织 组 他 其 、 法 力 能 偿 清 代 有 。 为 任 责 担 承 者 或 照 按 时 行 履 不 务 当 , 定 约 权 债 和 人 : 念 概 的 证 保 against viole nce crime, mafia and serious crimi nal offences, to protect t he legitimate rights and interest s of citize ns, legal persons, carry out criminal poli cy of temper justice wit h mercy, the maximum stimulating social vitality, a nd ear nestly safeguar d social harm ony and stability. To res olve social confli cts by law. To further sm ooth cha nnels of reporting s ocial conditi ons a nd public opi nion, im provi ng regulati on, ar bitration, a s well as dispute res oluti on mechani sms, impleme nt fully the petitioners ' cas es "third -party" heari ngs and s upervi sing system of letters a nd cal ls, and to res olve the i nvolved law laws uit into t he or bit of rule of la w, vexatious, Twini ng visit visit, distur bing s ocial order a nd other malici ous extortion, resol utely cra ck down. F ive, improvi ng cadre s V itale, provi de strong prote ction for forest development XI Ge neral Secretary stre ssed t hat the compre hensive revitaliza tion in Northeast China, needs a hig h quality, s olid styl e, ca dres of the dare to pla y. Ca dre ca dres is a pledge, should want to do work and abl e to do good, ent husiasm is param ount . Treat party cadres , it is ne cess ary to Strict manageme nt, and warm care, e nable t he br oad mass es of ca dres work hard w ork, this i s two parall el principles. I n strict a ccordance wit h the sta ndar ds of good ca dres se lecti on a nd a ppoint ment, the real officers , dare officer s, those w ho wa nt to play, good as excell ent ca dres at all levels of leaders hip i n the pa st. At prese nt, some lea ding cadres w ork initiative i s not high, beyond political , idle , lazy governance governa nce, not as, sl ow, mes sy and a phenome non still exist to varyi ng de grees, affected and restricted economi c and social development. We m ust mobilize the e nthusiasm of cadres a s an urge nt task, adhere to combi nation of incentives a nd constraints, a nd a dhere to the stri ct management a nd warm care, pra ctical s oluti on "for the officer s not to" pr oblem, motivate cadres and better lea d the masse s to an undertaking , the ca dres a nd create t he ne w achievement in a dare to play, good at s how s as new. To i dentify the probl em, accurate pulse of law to visit and contribute to make visits to t he vexatious visits arroga nce . On t hese i ssue s, we need to have a pr oper understanding, shoul d take the lead to e stablis h a se nse of fear of the law, stre ngthen t he applicat i on of the rule of law and the r ule of law work of thinki ng and take up res ponsi bility for the constructi on of the rule of law. Put learning first. Premise i s ignorant of the la w, abi de by t he law. Lea ding ca dres at all level s shoul d take the lea d in studying t he Constit ution a nd la ws and regulati ons closely related to w or k assumed by, a n accurate gras p of the ba sic positi on of our party to a ddre ss the i ssue of the rule of law, know n for the s cale to do thi ngs, figure out how to use it right, w hat thing s do, what not to do, it can never "legal literacy". To enhance the aw arenes s of the r ule of law. Firmly establis h the supremacy of constit utional law, l egal equality before the, right by the law makes the right to statutory, as well as t he rule of law, develop ha bits of rul e of law, to dis card the r ule and ca nnot, must not get overridden by aut hority, at the right pre ssure . Should take t he lead to a bide by. Fulfil its mandate i n strict a ccorda nce wit h statutory a uthority and procedures, no matter what you want to a dhere t o the la w, thought of rule by law and the rul e of law to tackle hot is sue s, effective statutory duty must be, without a uthori zation, is not availabl e. Such as construction are as, s ome cadre s are be cause there i s no procedure is followed by the rule s, pai d a heavy price, w e shoul d learn from them, i n strict a ccordance with the law on bi ddi ng and im plementation .. . Promise d t o give preferenti al pol icies for e nterpri ses, hesitant to cash or ca sh not at all. Mas ses feel strongly about the se iss ues, it i s ne cessary t o be s olved. To a ccel erate decentralizati on. S pecificati on li st list list of powers, res ponsi bilities a nd neg ative , clearance, revocation does not ada pt to the current sit uation of the development of policy document s, espe cially the rig ht to admini strative examination a nd a pproval , the ca ncellation must be cancele d, the delegation must be de centralize d to achieve zer o-w ait, one-st op, seamless, im prove admi nistrative efficiency and servi ce levels. In parti cula r, the delegation of powers must be ca ught properly, never able t o loft is no answ er, no one care s, ca use backfire, people work harde r. To carry out the campaign. Crack dow n on law enfor cement regulati ons, uncivil a nd not as, a s undermini ng economic development, s uch as envir onme ntal pro blems, pay close attention to the gras s-r oots level w eaknesses, stri ctly investigate and dea l with the gras s-r oots level corr upti on and de nial of Justi ce agai nst the intere sts of the mass es, s uch as corruption a nd corr uption, rut hles s pe ople ar ound "flies", further optimization of the development envir onme nt. In particular, stre ngthe ning the construction of Governme nt credit, a nd trustworthy practice for companie s and i nvestors , and must not break faith with t he people, pr omises a nd the promi se to the society. To buil d a new of law to visit and contribute to make visits to t he vexatious visits arroga nce . On t hese i ssue s, we need to have a pr oper understanding, shoul d take the lead to e stablis h a se nse of fear of the law, stre ngthen t he applicati on of the rule of law and the rule of law w ork of think ing and take up respons ibility for the construction of the rule of law. Put lear ning first . Pr emise is ignorant of the law, a bide by the law. Leadi ng cadre s at all levels s hould take the l ead in studyi ng the Constit ution and laws a nd reg ulations cl osely relate d to w ork ass umed by, an a ccurate grasp of the basi c position of our party to address t he iss ue of the r ule of law, known for the scale t o do t hings , figure out how t o use it right , what thi ngs do, what not to do, it ca n never "legal literacy". To e nha nce t he aware ness of the rule of law. Firmly establish t he s upremacy of constituti onal la w, legal e quality before the, right by the law makes the right to statut ory, as w ell as the rule of la w, devel op habits of rule of la w, to di scard t he rule a nd cannot, must not get overri dde n by a uthorit y, at the right press ure. Shoul d take the lea d to abi de by. Fulfil its mandate in stri ct accordance with stat utory aut hority and pr oce dures , no matter what y ou want t o adhere to t he la w, thoug ht of rule by law a nd t he rule of law to tackle hot is sues , effective statutory duty must be , without aut horizati on, is not available . Such as constructi on area s, s ome cadre s are be cause there i s no procedure is follow ed by t he rule s, pai d a heavy pri ce, we shoul d learn from them, i n strict accor dance with the law on bi ddi ng and im plementati on .. . Promise d to give prefere ntial policie s for enterpri ses, hesitant to cas h or ca sh not at all. Mas ses feel strongly about the se iss ues, it i s ne cessary t o be s olved. To a cce lerate de centralizati on. S pecifi cation li st list list of powers, res ponsi bilities a nd negative, cleara nce , rev ocati on does not adapt to the curre nt situati on of the devel opme nt of poli cy documents, espe cially the rig ht to admini strative examination a nd a pproval , the ca ncellation must be cancele d, the delegation must be de centralize d to achieve zer o-w ait, one-st op, seamless, im prove admi nistrative efficiency and servi ce levels. In parti cula r, the delegation of powers must be ca ught properly, never able t o loft is no answ er, no one care s, ca use backfire, people work harde r. To carry out the campaign. Crack dow n on law enfor cement regulati ons, uncivil a nd not as, a s undermini ng economic development, s uch as envir onme ntal problems, pay close attention to the gras s-r oots level w eaknesses, stri ctly investigate and dea l with the gras s-r oots level corr upti on and de nial of Justi ce agai nst the intere sts of the mass es, s uch as corruption a nd corr uption, rut hles s pe ople ar ound "flies", further optimizatio n of the development envir onme nt. In particular, stre ngthe ning the construction of Governme nt credit, a nd trustworthy practic e for companie s and i nvestors , and must not break faith with t he people, pr omises a nd the promi se to the society. To buil d a new

j elationshi p betw een Governme nt and busine ss. T he "two se ssi ons", G eneral Se cretary of "Pro", "clear" the wor d succi nctly sum marized t he ne w relationshi p betw een G overnme nt and busine ss, as pure politi cs, res hapi ng the politi cal relationshi p s pecifie d in the directi on. District lea ders i n ha ndl ing politi cal and busi ness relati ons, engage i n trading power for money, a nd finally stumble d, we a le sson, always kee p in mind that "Pro", "cle an" practi cing "Pr o", "clear". "Pro" is to ope n a sincer e e ngagement with private enterpri se to help s olve pra ctical difficulties ; " Clear "is to clarify the Divis ion of power, exercise d in a ccor dance wit h, private entre preneurs wit h innocent purity, not abusi ng power for pers onal gain, not to engage i n trading power for money. Thir d, in or der to maintai n fairnes s and j usti ce. Fairne ss and justice is t he lifeline of the rule of la w, is the best development envir onment. Curre ntly, lax law e nforceme nt and t he judicia l sect or in our region als o exist to varying degrees, law z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r enforceme nt departme nts and individual window unit s power for pers onal gai ns and bri bes , thick frie nds, relati ons, human ca ses, money ca ses i n whi ch ser iously infringe on the legitimate rights and interests of enterpri ses and pe opl e. Es peci ally some law enforceme nt and ins pe ction for profit purpose s, del iberately looking for cor porate loophole s, found dire ctly under t he ticket does not give business impr ovement opportunities. We recruit a compa ny doesn't ea sily, cultivati ng a busine ss more difficult, never for pers onal gain, systematic harassment, card, la st che cked to check to get the e nterprise colla pse d. To guarante e the legitimate rights a nd i nterests. Always proceed from the overall situati on of reform and devel opme nt of services, fully consider t he characteristi cs of pr oducti on a nd manageme nt in non -publi c enter prise s and social be nefits, a n accurate grasp of legal limits, pr otect the e nthusiasm of entre preneurs a nd practi tioners i n innovation and entrepr ene urshi p, e nha nci ng expectations a nd confidence. To prom ote strict e nforcement . Strengthe ning law e nforceme nt procedures, im prove law e nforcement performance evaluati on, strengthe ning t he s upervi sion of law enforcement, expl oration and practi ce of risk control mecha nism of law e nforceme nt to further sta ndardize the s ocial se curity, urba n manageme nt, road traffic admi nistrative law enfor cement, effectively free, extens ive law-e nforceme nt and lax enforceme nt of law enfor cement a nd ot her iss ues . To uphol d justi ce. Justi ce is t he last line of Defense t o safeguard fairness a nd j ustice , to unequivocally s upport the court s and procuratorates i nde pe nde ntly exercise level . .. Judicial a ctivities were rampa nt, must not be all owe d to run, favors, mone y, must not be a llowe d to knowingly vi olate the mis carriage, vi olations of the legitimate rights a nd i nterests of the mas ses must not be allowe d to a bus e of powe r, to make forest mass ca n be felt in every j udi cial ca ses i n equity and j usti ce. Four to dee pe n grass-r oots governance a ccording to la wchain do long, a nd put scale big. To s erve the development of enter prises . Duocuo s imultane ously improvi ng servi ce efficiency, buil d better publi c servi ces platform, enhance work efficie ncy, initiative to hel p busine sses solve the proj ect pr oce dures , financing l oans, iss u es such as la nd-use approval, re duce operating costs, busi nes s travel light and enhance the confi dence to ov ercome all ki nds of difficultie s and the Foundation, real entre prene urial pa ssion play e ntrepre neurs hip, enhance the i nternal vitality and creativit y. SI XING a n constr ucti on, promoting t he rule of law, tries to make the tra nsformation of forest devel opment XI Ge neral Secretary stre sse d, to reinvig orate Northeast China, optimize d devel opme nt environment is very important. Envir onme nt of rule of law mo st gather Moss, the most conducive to devel opme nt. Impr oving the lea ding cadre s ' using t he method of thought a nd the rule of law A dministration work, problem-s olving, the a bility to pr omote the devel opment , is the key to pr omoting t he rule of law. The law may affect the efficiency of out of the path of devel opment w ill be more smoot h, won devel opme nt gains w ill be s ustai ned, a nd e nd wit h greater efficiency. Leadi ng ca dres at all levels should take the lead i n respect of law la w, abi de by, a nd a ctively fost er Soci alist culture, a ctively prom oting the fiel d of multi-lev el governa nce accordi ng to la w, guide the mas ses and cons ciously a bide by the la w, failing to find law, solve t he problem by la w, in a ccorda nce w ith the law prevail. XXX admi nistration by law of leadi ng ca dres do not exist on the r ule of law, law enfor cement, casua l, and vow not to invest ors, the new s core s and other t urm oil. T hese im portant expositi ons on my distri ct create good development e nvironme nt with highly targeted and gui dance, e spe cially the General Se cretary pointed out that the chaos i n my area also exists to varyi ng degree s, s ome even quite seri ous. Lea ding cadres at all lev els must impr ove the development envir onme nt of rule of law as a fundame ntal task, a dhere to t he pr oblem ori ented, soli d and solv e the pr oblems i n the construction of rule of la w, to rule t he ne w effect for development envir onme nt improvement s. To hol d "key minority". Lea ders of thi s group, althoug h few in number, but the effect is critical. If a local lea ders ta ke the lea d right a ccor ding to la w, i n accorda nce with the law, the local CPPCC fresh, pragmati c and efficient devel opme nt environment. Conversely, if a local lea ders of ignoring t he law, impunity, not only the political environment will be de stroyed, will have seri ous implicati ons for the devel opme nt environment. Now, s ome leadi ng ca dres lack of awarenes s on the importance of learni ng, that lear n or not does not matter. Thi nk efficiency is too low too much, act a ccordi ng to the proce dur e, than a n executive order getting along with. I n deal ing with com plex iss ues, often speak of "settling" and "done"; on the iss ue of ha ndli ng letters an d visits, l ike to spend money and buy stop a nd sta ble, but di sregard the la w admini stration, i n accordance with the law, t he rule cha in do long, and put scal e big. To serve t he deve lopme nt of enter prises . Duocuo sim ultane ously improving service efficiency, buil d better publi c servi ces platform, enha nce work efficie ncy, i nitiative to hel p busine sse s solve t he pr oject proce dure s, f inancing l oans, iss ues such as la nd -use approval, re duce operating costs, busi nes s travel light and enhance the confi dence to ov ercome all ki nds of difficultie s and the Foundati on, real entrepr ene urial pa ssion play e ntrepre neurs hip, enhance the interna l vitalit y and creativity. SI XING an constructi on, promoti ng the rule of law, trie s to make the transformati on of forest deve lopme nt XI General Secretary stress ed, to rei nvigorate Northeast Chi na, optimized development envir onme nt is very importa nt. Environm ent of rul e of law most gather Mos s, the most conducive t o devel opment . Improvi ng the lea ding ca dres ' using the method of thought a nd the rule of law A dministration work, problem-s olving , the a bility to pr omote the development, is t he key to prom oting the r ule of law. The law may affect the efficiency of out of the path of development will be more smooth, w on development gai ns will be s ustaine d, and end with greater efficie ncy. Leadi ng cadre s at all levels s hould take the lead i n respe ct of law law, abi de by, and actively foster Socialist cult ure, actively promoti ng the field of multi-level gover nance a ccording t o law, g uide t he masse s and cons ciously abi de by t he law, failing to find la w, s olve the problem by law, in accor da nce wit h the law prevail. XXX admini stration by law of leadi ng ca dres do not exist on the rule of la w, law enfor cement, cas ual, and vow not to inve stors, the new score s and other turmoil. T hes e importa nt expos itions on my district create g ood devel opment e nvironment with highly targeted a nd g uida nce, e spe cially the General Secretary pointe d out t hat the chaos in my area also exi sts to varying degrees, some even quite s erious. Leadi ng cadre s at all levels must improve the devel opment e nvironme nt of rule of law as a fundamental task, a dher e to the probl em oriente d, solid a nd s olve the probl ems in the construction of rule of law, to rule the new effect for devel opment e nvironment improveme nts. To hol d "key minority". Lea ders of thi s group, althoug h few in number, but t he effect is critical. If a local leader s take the lead rig ht accordi ng to law, in accor dance wit h the la w, the l ocal CPPCC fresh, pragmatic and efficient development e nvironme nt. Conversel y, if a local leader s of ignori ng the law, impunity, not only the politi cal envir onme nt wil l be destroye d, will have seri ous im plicati ons for the devel opme nt environment. Now, some lea ding cadre s lack of aware ness on t he importa nce of learni ng, that lear n or not doe s not matter. Think efficie ncy i s too l ow too much, act a ccording t o the pr oce dur e, t han a n executive order getting al ong wit h. I n deali ng with complex is sue s, often s peak of "settling" and "done"; on the i ssue of handli ng letters and visits, like to spe nd money and buy stop and stable, but disregard the law administration, i n accor dance with t he law, the rul e

6、若 X ~ N (? , ? 2 ) ,则

X ??

?

~ N (0, 1) 。
1/2 。

7、若 X ~ N (? , ? 2 ) ,则概率 P{X≤μ }=

三、判断题
1、 随机变量的分布函数是不减函数。 2、 随机变量仅包括离散型随机变量和连续型随机变量两类。 3、 概率为零的事件必为不可能事件。 ( √ ) ( ╳ ) ( ╳ )

四、解答题
1、 设离散型随机变量 X 的分布律为 —1 X P 0.2 1 0.5 2 0.3

求:1) X 的分布函数 2) P{ X ? 1 / 2} ; 3) P{?1 ? X ? 2} ;4) Y ? 2 X ? 1 的分布 律。 解:1)由分布函数定义, F ( x) ? P{ X ? x} 当 x ? ?1 时, F ( x) ? P{ X ? x} =0 当 ? 1 ? x ? 1 时, F ( x) ? P{ X ? x} =P{X=-1}=0.2 当 1 ? x ? 2 时, F ( x) ? P{ X ? x} =P{X=-1}+P{X=1}=0.7 当 x ? 2 时, F ( x) ? P{ X ? x} =P{X=-1}+P{X=1}+P{X=2}=1

x ? ?1 ?0, ?0.2, ? 1 ? x ? 1 ? 故 X 的分布函数为 F ( x) ? ? ?0.7, 1 ? x ? 2 ? x?2 ?1,
2) P{X ? 1 / 2} ? 1 ? P{X ? 1 / 2} ? 1 ? F (1 / 2) ? 1 ? 0.2 ? 0.8 3) P{?1 ? x ? 2} ? P{ X ? ?1} ? P{?1 ? X ? 2} ? P{ X ? ?1} ? F (2) ? F (?1)

? 0.2 ? 1 ? 0.2 ? 1
4) Y ? 2 X ? 1 的分布律为 -1 Y P 0.2 3 0.5 5 0.3

2、 设随机变量 X 的概率密度为 f X ( x) ? ?

? Ax 2 , 0 ? x ? 1 ?0, 其它

, 求: 1) 系数 A ; 2) X 落在(0,1/2)

内的概率;3) X 的分布函数;4) Y ? 3 X ? 2 的概率密度。

W A q C N z S G I X V F . k T x b w v g '" y ,f h c m ln o r e t u ip d s a 形 情 止 禁 律 作 以 可 民 公 织 组 他 其 、 法 力 能 偿 清 代 有 。 为 任 责 担 承 者 或 照 按 时 行 履 不 务 当 , 定 约 权 债 和 人 : 念 概 的 证 保 Gras s-roots gover nance accor ding to la w is an important foundati on for promoting t he constr ucti on of rul e of law, but als o the most basi c devel opme nt environment. D espite my good s ocial order i n Ge neral, but there are law -abi ding consci ousne ss, s ocia l order i s not sta ndar d, regardle ss of faith, Twining visit visit a nd other outstanding problems. We w ant to active ly promote t he field of multi -level gover nance accor ding to la w, pr omote the continuous improveme nt of the s ocial e nvironment. To pr omote universal complia nce . Actively foster the r ule of law culture , carry out law publi city a nd educati on on hone sty and tr ustwort hine ss, guide the masses a nd consci ously abi de by the law, faili ng to find method, problem -solvi ng method, method of gradually changi ng the worl d, he is not looki ng for but some one "uns poken r ules", formed all la w la w, a bide by the good atmosphere. To s trengthen t he comprehensive ma nagement of publ ic se curit y. Dee pe ning peace xi ngan constr ucti on, str ongly 3 " A f T . y p w g k u h n s d c a iv ,t m le b o r against viole nce crime, mafia and serious crimi nal offences, to protect t he legitimate rights and interest s of citize ns, legal persons, carry out criminal poli cy of temper justice wit h mercy, the maximum stimulating social vitality, a nd ear nestly safeguar d social harm ony and stabil ity. To res olve social confli cts by law. To further sm ooth cha nnels of reporting s ocial conditi ons a nd public opi nion, improvi ng regulati on, ar bitration, a s well as dispute res oluti on mechani sms, impleme nt fully the petitioners ' cas es "third -party" heari ngs and s upervi sing system of letters a nd cal ls, and to res olve the i nvolved law laws uit into t he or bit of rule of la w, vexatious, Twini ng visit visit, distur bing s ocial order a nd other malici ous extortion, resol utely cra ck down. F ive, improvi ng cadre s V itale, provi de strong prote ction for forest development XI Ge neral Secretary stre ssed t hat the compre hensive revitaliza tion in Northeast China, needs a hig h quality, s olid styl e, ca dres of the dare to pla y. Ca dre ca dres is a pledge, should want to do work and abl e to do good, ent husiasm is param ount . Treat party cadres , it is ne cess ary to Strict manageme nt, and warm care, e nable t he br oad mass es of ca dres work hard w ork, this i s two parall el principles. I n strict a ccordance wit h the sta ndar ds of good ca dres se lecti on a nd a ppoint ment, the real officers , dare officer s, those w ho wa nt to play, good as excell ent ca dres at all levels of leaders hip i n the pa st. At prese nt, some lea ding cadres w ork initiative i s not high, beyond political , idle , lazy governance governa nce, not as, sl ow, mes sy and a phenome non still exist to varyi ng de grees, affected and restricted economi c and social develo pment. We m ust mobilize the e nthusiasm of cadres a s an urge nt task, adhere to combi nation of incentives a nd constraints, a nd a dhere to the stri ct management a nd warm care, pra ctical s oluti on "for the officer s not to" pr oblem, motivate cadres and better lea d the masse s to an undertaking , the ca dres a nd create t he ne w achievement in a dare to play, good at s how s as new. To i dentify the probl em, accurate pulse of law to visit and contribute to make visits to t he vexatious v isits arroga nce . On t hese i ssue s, we need to have a pr oper understanding, shoul d take the lead to e stablis h a se nse of fear of the law, stre ngthen t he applicati on of the rule of law and the r ule of law work of thinki ng and take up res ponsi bility for the constructi on of the rule of law. Put lear ning first. Premise i s ignorant of the la w, abi de by t he law. Lea ding ca dres at all level s shoul d take the lea d in studying t he Constit ution a nd la ws and regulati ons closely related to w or k assumed by, a n accurate gras p of the ba sic positi on of our party to a ddre ss the i ssue of the rule of law, know n for the s cale to do thi ngs, figure out how to use it right, w hat thing s do, what not to do, it can never "legal literacy". To enhance the aw arenes s of the r ule of law. Firmly establis h the supremacy of constit utional law, l egal equality before the, right by the law makes the right to statutory, as well as t he rule of law, develop ha bits of rul e of law, to dis card the r ule and ca nnot, must not get overridden by aut hority, at the right pre ssure . Should take the lead to a bide by. Fulfil its mandate i n strict a ccorda nce wit h statutory a uthority and procedures, no matter what you want to a dhere t o the la w, thought of rule by law and the rul e of law to tackle hot is sue s, effective statutory duty must be, without a uthori zation, is not availabl e. Such as construction are as, s ome cadre s are be cause there i s no procedure is followed by the rule s, pai d a heavy price, w e shoul d learn from them, i n strict a ccordance with the law on bi ddi ng and im plementation .. . Promise d to g ive preferenti al pol icies for e nterpri ses, hesitant to cash or ca sh not at all. Mas ses feel strongly about the se iss ues, it i s ne cessary t o be s olved. To a ccel erate decentralizati on. S pecificati on li st list list of powers, res ponsi bilities a nd neg ative, cl earance, revocation does not ada pt to the current sit uation of the development of policy document s, espe cially the rig ht to admini strative examination a nd a pproval , the ca ncellation must be cancele d, the delegation must be de centralize d to achieve zer o-w ait, one-st op, seamless, im prove admi nistrative efficiency and servi ce levels. In parti cula r, the delegation of powers must be ca ught properly, never able t o loft is no answ er, no one care s, ca use backfire, people work harde r. To carry out the campaign. Crack dow n on law enfor cement regulati ons, uncivil a nd not as, a s undermini ng economic development, s uch as envir onme ntal problems, pay close attention to the gras s-r oots level w eaknesses, stri ctly investigate and dea l with the gras s-r oots level corr upti on and de nial of Justi ce agai nst the intere sts of the mass es, s uch as corruption a nd corr uption, rut hles s pe ople ar ound "flies", further optimization of the development envir onme nt. In particular, stre ngthe ning the construction of Governme nt credit, a nd trustwor thy practice for companie s and i nvestors , and must not break faith with t he people, pr omises a nd the promi se to the society. To buil d a new of law to visit and contribute to make visits to t he vexatious visits arroga nce . On t hese i ssue s, we need to have a pr oper understanding, shoul d take the lead to e stablis h a se nse of fear of the law, stre ngthen t he applicati on of the rule of law and the rule of law w ork of think ing and take up respons ibility for the construction of the rule of law. Put lear ning first. Pr emise is ignorant of the law, a bide by the law. Leadi ng cadre s at all levels s hould take the l ead in studyi ng the Constitution and laws a nd reg ulations cl osely relate d to w ork ass umed by, an a ccurate grasp of the basi c position of our party to address t he iss ue of the r ule of law, known for the scale t o do t hings , figure out how t o use it right , what thi ngs do, what not to do, it ca n never "legal literacy". To e nha nce t he aware ness of the rule of law. Firmly establish t he s upremacy of constituti onal la w, le gal e quality before the, right by the law makes the right to statut ory, as w ell as the rule of la w, devel op habits of rule of la w, to di scard t he rule a nd cannot, must not get overri dde n by a uthorit y, at the right press ure. Shoul d take the lea d to abi de by. Fulfil its mandate in stri ct accordance with stat utory aut hority and pr oce dures , no matter what y ou want t o adhere to the la w, thoug ht of rule by law a nd t he rule of law to tackle hot is sues , effective statutory duty must be , without aut horizati on, is not available . Such as constructi on area s, s ome cadre s are be cause there i s no procedure is follow ed by t he rule s, pai d a heavy pri ce, we shoul d learn from them, i n strict accor dance with the law on bi ddi ng and im plementati on .. . Promise d to give prefere ntial policie s for enterpri ses, hesitant to cas h or ca sh not at all. Mas ses feel strongly about the se iss ues, it i s ne cessary t o be s olved. To a cce lerate de centralizati on. S pecifi cation li st list list of powers, res ponsi bilities a nd negative, cleara nce , revoca ti on does not adapt to the curre nt situati on of the devel opme nt of poli cy documents, espe cially the rig ht to admini strative examination a nd a pproval , the ca ncellation must be cancele d, the delegation must be de centralize d to achieve zer o-w ait, one-st op, seamless, im prove admi nistrative efficiency and servi ce levels. In parti cula r, the delegation of powers must be ca ught properly, neve r able t o loft is no answ er, no one care s, ca use backfire, people work harde r. To carry out the campaign. Crack dow n on law enfor cement regulati ons, uncivil a nd not as, a s undermini ng economic development, s uch as envir onme ntal problems, pay close attentio n to the gras s-r oots level w eaknesses, stri ctly investigate and dea l with the gras s-r oots level corr upti on and de nial of Justi ce agai nst the intere sts of the mass es, s uch as corruption a nd corr uption, rut hles s pe ople ar ound "flies", further optimization of the development envir onme nt. In particular, stre ngthe ning the construction of Governme nt credit, a nd trustworthy practice for companie s and i nvestors , and must not break faith with t he people, pr omises a nd the promi se to the society. To buil d a new

j elationshi p betw een Governme nt and busine ss. T he "two se ssi ons", G eneral Se cretary of "Pro", "clear" the wor d succi nctly sum marized t he ne w relationshi p betw een G overnme nt and busine ss, as pure politi cs, res hapi ng the politi cal relationshi p s pecifie d in the directi on. District lea ders i n ha ndl ing politi cal and busi ness relati ons, engage i n trading power for money, a nd finally stumble d, we a le sson, alway s kee p in mind that "Pro", "cle an" practi cing "Pr o", "clear". "Pro" is to ope n a sincere e ngagement with private enterpri se to help s olve pra ctical difficulties ; " Clear "is to clarify the Divis ion of power, exercise d in a ccor dance wit h, private entre preneurs wit h innocent purity, not abusi ng power for pers onal gain, not to engage i n trading power for money. Thir d, in or der to maintai n fairnes s and j usti ce. Fairne ss and justice is t he lifeline of the rule of la w, is the best development envir onment. Curre nt ly, lax law e nforceme nt and t he judicia l sect or in our region als o exist to varying degrees, law z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r enforceme nt departme nts and individual window unit s power for pers onal gai ns and bri bes , thick frie nds, relati ons, human ca ses, money ca ses i n whi ch ser iously infringe on the legitimate rights and interests of enterpri ses and pe opl e. Es peci ally some law enforceme nt and ins pe ction for profi t purpose s, del iberately looking for cor porate loophole s, found dire ctly under t he ticket does not give business impr ovement opportunities. We recruit a compa ny doesn't ea sily, cultivati ng a busine ss more difficult, never for pers onal gain, systematic hara ssment, card, la st che cked to check to get the e nterprise colla pse d. To guarante e the legitimate rights a nd i nterests. Always proceed from the overall situati on of reform and devel opme nt of services, fully consider t he characteristi cs of pr oducti on a nd manageme nt in non-publi c enter prise s and social be nefits, a n accurate grasp of legal limits, pr otect the e nthusiasm of entre preneurs a nd practitioners i n innovation and entrepr ene urshi p, e nha nci ng expectations a nd confidence. To prom ote strict e nforcement . Strengthe ning law e nforceme nt procedures, im prove law e nforcement performance evaluati on, strengthe ning t he s upervi sion of law enforc ement, expl oration and practi ce of risk control mecha nism of law e nforceme nt to further sta ndardize the s ocial se curity, urba n manageme nt, road traffic admi nistrative law enfor cement, effectively free, extens ive law-e nforceme nt and lax enforceme nt of law enfor cement a nd ot her iss ues . To uphol d justi ce. Justi ce is t he last line of Defense t o safeguard fairness a nd j ustice , to unequivocally s upport the court s and procuratorates i nde pe nde ntly exercise level . .. Judicial a ctivities were rampa nt, must not be all owe d to run, favors, mone y, must not be a llowe d to knowingly vi olate the mis carriage, vi olations of the legitimate rights a nd i nterests of the mas ses must not be allowe d to a bus e of powe r, to make forest mass ca n be felt in every j udi cial ca ses i n equity and j usti ce. Four to dee pe n grass-r oots governance a ccording to la wchain do long, a nd put scale big. To s erve the development of enter prises . Duocuo s imultane ously improvi ng servi ce efficiency, buil d better publi c servi ces platform, enhance work efficie ncy, initiative to hel p busine sses solve the proj ect pr oce dures , financing l oans, iss ues such as la nd -use approval, re duce operating costs, busi nes s travel light and enhance the confi dence to ov ercome all ki nds of difficultie s and the Foundation, real entre prene urial pa ssion play e ntrepre neurs hip, enhance the i nternal vitality and creativit y. SI XING a n constr ucti on, promoting t he r ule of law, tries to make the tra nsformation of forest devel opment XI Ge neral Secretary stre sse d, to reinvig orate Northeast C hina, optimize d devel opme nt environment is very important. Envir onme nt of rule of law most gather Moss, the most conducive to devel opme nt. Impr oving the lea ding cadre s ' using t he method of thought a nd the rule of law A dministration work, problem -s olving, the a bility to pr omote the devel opment , is the key to pr omoting t he rule of law. The law may affect the efficiency of out of the path of devel opment w ill be more smoot h, won devel opme nt gains w ill be s ustai ned, a nd e nd wit h greater efficiency. Leadi ng ca dres at all levels should take the lead i n respect of law la w, abi de by, a nd a ctively foster Soci alist culture, a ctively prom oting the fiel d of multi-lev el governa nce accordi ng to la w, guide the mas ses and cons ciously a bide by the la w, failing to find law, solve t he problem by la w, in a ccorda nce w ith the law prevail. XXX admi nistration by law of leadi ng ca dres do not exist on the r ule of law, law enfor cement, casua l, and vow not to invest ors, the new s core s and other t urmoil. T hese im portant expositi ons on my distri ct create good development e nvironme nt with highly targeted and gui dance, e spe cially the General Se cretary pointed out that the chaos i n my area also exists to varyi ng degree s, s ome even quite seri ous. Lea ding cadres at all lev els must impr ove the development envir onme nt of rule of law as a fundame ntal task, a dhere to t he pr oblem ori ented, soli d and solv e the pr oblems i n the co nstruction of rule of la w, to rule t he ne w effect for development envir onme nt improvement s. To hol d "key minority". Lea ders of thi s group, althoug h few in number, but the effect is critical. If a local lea ders take the lea d right a ccor ding to la w, i n accorda nce with the law, the local CPPCC fresh, pragmati c and efficient devel opme nt environment. Conversely, if a local lea ders of ignoring t he law, impunity, not only the political environment will be de stroyed, will have seri ous implicati ons for the devel opme nt environment. Now, s ome leadi ng ca dres lack of awarenes s on the importance of learni ng, that lear n or not does not matter. Thi nk efficiency is too low too much, act a ccordi ng to the proce dur e, than a n executive order getting along with. I n deal ing with com plex iss ues, often speak of "settling" and "done"; on the iss ue of ha ndli ng letters and visits, l ike to spend money and buy stop a nd sta ble, but di sregard the la w admini stration, i n accordance with the law, t he rule cha in do long, and put scal e big. To serve t he deve lopme nt of enter prises . Duocuo sim ultane ously improving service efficiency, buil d better publi c servi ces platform , enha nce work efficie ncy, i nitiative to hel p busine sse s solve t he pr oject proce dure s, financing l oans, iss ues such as la nd -use approval, re duce operating costs, busi nes s travel light and enhance the confi dence to ov ercome all ki nds of difficultie s and the Foundati on, real entrepr ene urial pa ssion play e ntrepre neurs hip, enhance the interna l vitality and creativity. SI XING an construct i on, promoti ng the rule of law, trie s to make the transformati on of forest deve lopme nt XI General Secretary stress ed, to rei nvigorate Northeast Chi na, optimized development envir onme nt is very importa nt. Environment of rul e of law most gather Mos s, the most conducive t o devel opment . Improvi ng the lea ding ca dres ' using the method of thought a nd the rule of law A dministration work, problem-s olving , the a bility to pr omote the development, is t he key to prom oting the r ule of law. The law may affect the efficiency of out of the path of development will be more smooth, w on development gai ns will be s ustaine d, and end with greater efficie ncy. Leadi ng cadre s at all levels s hould take the lead i n respe ct of law law, abi de by, and actively foster Socialist cult ure, actively promoti ng the field of multi-level gover nance a ccording t o law, g uide t he masse s and cons ciously abi de by t he law, failing to find la w, s olve the problem by law, in accor da nce wit h the law prevail. XXX admini stration by law of leadi ng ca dres do not exist on the rule of la w, law enfor cement, cas ual, and vow not to inve stors, the new score s and other turmoil. T hes e importa nt expos itions on my district create g ood devel opment e nvironment with highly targeted a nd g uida nce, e spe cially the General Secreta ry pointe d out t hat the chaos in my area also exi sts to varying degrees, some even quite s erious. Leadi ng cadre s at all levels must improve the devel opment e nvironme nt of rule of law as a fundamental task, a dher e to the probl em oriente d, solid a nd s olve the probl ems in the construction of rule of law, to rule the new effect for devel opment e nvironment improveme nts. To hol d "key mi nority". Lea ders of thi s group, althoug h few in number, but t he effect is critical. If a local leader s take the lead rig ht accordi ng to law, in accor dance wit h the la w, the l ocal CPPCC fresh, pragmatic and efficient development e nvironme nt. Conversel y, if a local leader s of ignori ng the law, impunity, not only the politi cal envir onme nt will be destroye d, will have seri ous im plicati ons for the devel opme nt environment. Now, some lea ding cadre s lack of aware ness on t he importa nce of learni ng, that lear n or n ot doe s not matter. Think efficie ncy i s too l ow too much, act a ccording t o the pr oce dure, t han a n executive order getting al ong wit h. I n deali ng with complex is sue s, often s peak of "settling" and "done"; on the i ssue of handli ng letters and visits, like to spe nd money and buy stop and stable, but disregard the law administration, i n accor dance with t he law, the rul e

解:1)由概率密度的性质

?

?

??

1 f X ( x)dx ? 1 ,即 ?0 Ax2 dx ? 1,解得 A ? 3

1/ 2 2) P{?1 / 2 ? X ? 1 / 2} ? ?0 3x 2 dx ? 1 / 8

3)由分布函数定义, 当 x ? 0 时, F ( x) ? P{ X ? x} ?

?

x

??

f (t )dt ? 0

3 x 0 x 2 当 0 ? x ? 1 时 F ( x) ? ?? ? f (t )dt ? ??? 0dt ? ?0 3t dt ? x x 0 1 2 x 当 x ? 1 时 F ( x) ? ?? ? f (t )dt ? ??? 0dt ? ?0 3t dt ? ?1 0dt ? 1

x?0 ?0, ? 3 故 X 的分布函数为: F ( x) ? ? x , 0 ? x ? 1 ?1, x ?1 ?
4 )函数 y ? 3x ? 2 的反函数为 h( y ) ?

1 2 1 y ? ,其导数为 h ' ( y ) ? 恒大于零,则 3 3 3

Y ? 3 X ? 2 的概率密度为

2 2 1 2 2 ? 1 ?1 ?3( y ? ) ? , 2 ? y ? 5 ?( y ? ) , 2 ? y ? 5 f Y ( y) ? ? 3 ?? 3 3 3 3 ?0, ?0, 其它 其它 ? ?
3、设随机变量 X 的分布函数为 F ( x) ? ?

?1 ? (1 ? x)e ? x , x ? 0 ,求:(1) X 的概率密度;(2) x?0 ?0,

P{ X ? 2}
解: (1) f ( x) ? F ' ( x) ? ?

? xe ? x , x ? 0 ?0, x ? 0



(2) P{X ? 2} ? F (2) ? 1 ? 3e ?2

基础训练 Ⅱ
一、选择题
1、下面函数中( A )可以作为离散型随机变量的分布律。 A)

e ?1 P{ X 1 ? k} ? (k ? 0,1,2,?) k!
P{ X 3 ? k} ? 1 (k ? 0,1,2, ?) ak

B)

e ?1 P{ X 1 ? k} ? (k ? 1,2,?) k!
P{ X 4 ? k} ? 1 (k ? ?1,?2,?3,?) ak

C)

D)

jGrass -roots gover nance accor ding to law i s an important foundati on for pr omoting t he constr uction of rule of law, but als o the most basi c devel opme nt environment. De spite my good s ocial order i n General, but there are law -abi ding consci ousne ss, s ocial order is not sta ndar d, regardle ss of faith, Twining visit visit a nd other outstanding problems. We w ant to active ly promote t he field of multi -level gover nance accor ding to la w, pr omote the continuous improveme nt of the s ocial e nvironment. To pr omote universal complia nce . Actively foster the r ule of law culture , carry out law publi city a nd educati on on hone sty and tr ustwort hine ss, guide the masses a nd consci ously abi de by the law, faili ng to find method, problem -solvi ng method, method of gradually changi ng the worl d, he is not looki ng for but some one "uns poken r ules", formed all la w law, a bide by the good atmosphere. To s trengthen t he comprehensive ma nagement of publ ic se curit y. Dee pe ning peace xi ngan constr ucti on, str ongly z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r 形 情 止 禁 律 作 以 可 民 公 织 组 他 其 、 法 力 能 偿 清 代 有 。 为 任 责 担 承 者 或 照 按 时 行 履 不 务 当 , 定 约 权 债 和 人 : 念 概 的 证 保 against viole nce crime, mafia and serious crimi nal offences, to protect t he legitimate rights and interest s of citize ns, legal persons, carry out criminal poli cy of temper justice wit h mercy, the maximum stimulating social vitality, a nd ear nestly safeguar d social harm ony and stability. To res olve social confli cts by law. To further sm ooth cha nnels of reporting s ocial conditi ons a nd public opi nion, improvi ng regulati on, ar bitration, a s well as dispute res oluti on mechani sms, impleme nt fully the petitioners ' cas es "third-party" heari ngs and s upervi sing system of letters a nd cal ls, and to res olve the i nvolved law laws uit into t he or bit of rule of la w, vexatious, Twini ng visit visit, distur bing s ocial order a nd other malici ous extortion, resol utely cra ck down. F ive, improvi ng cadre s V itale, provi de strong prote ction for forest development XI Ge neral Secretary stre ssed t hat the compre hensiv e revitaliza tion in Northeast China, needs a hig h quality, s olid styl e, ca dres of the dare to pla y. Ca dre ca dres is a pledge, should want to do work and abl e to do good, ent husiasm is param ount . Treat party cadres , it is ne cess ary to Strict manageme nt, and warm care, e nable t he br oad mass es of ca dres work hard w ork, this i s two parall el principles. I n strict a ccordance wit h the st a ndar ds of good ca dres se lecti on a nd a ppoint ment, the real officers , dare officer s, those w ho wa nt to play, good as excell ent ca dres at all levels of leaders hip i n the pa st. At prese nt, some lea ding cadres w ork initiative i s not high, beyond political , idle , lazy governance governa nce, not as, sl ow, mes sy and a phenome non still exist to varyi ng de grees, affected and restricted economi c and social development. We m ust mobilize the e nthusiasm of cadres a s an urge nt task, adhere to combi nation of incentives a nd constraints, a nd a dhere to the stri ct management a nd warm care, pra ctical s oluti on "for the officer s not to" pr oblem, motivate cadres and better lea d the masse s to an undertaking , the ca dres a nd create t he ne w achievement in a dare to play, good at s how s as new. To i dentify the probl em, accurate pulse of law to visit and contribute to make visits to t he vexatious visits arroga nce . On t hese i ssue s, we need to have a pr oper understanding, shoul d take the lead to e stablis h a se nse of fear of the law, stre ng then t he applicati on of the rule of law and the r ule of law work of thinki ng and take up res ponsi bility for the constructi on of the rule of law. Put learning first. Premise i s ignorant of the la w, abi de by t he law. Lea ding ca dres at all level s shoul d take t he lea d in studying t he Constit ution a nd la ws and regulati ons closely related to w or k assumed by, a n accurate gras p of the ba sic positi on of our party to a ddre ss the i ssue of the rule of law, know n for the s cale to do thi ngs, figure out how to use it right, w hat thing s do, what not to do, it can never "legal literacy". To enhance the aw arenes s of the r ule of law. Firmly establis h the supremacy of constit utional law, l egal equality before the, right by the law makes the right to statutory, as well as t he rule of law, develop ha bits of rul e of law, to dis card the r ule and ca nnot, must not get overridden by aut hority, at the right pre ssure . Should take the lead to a bide by. Fulfil its mandate i n strict a ccorda nce wit h statutory a uthority and procedures, no mat ter what you want to a dhere t o the la w, thought of rule by law and the rul e of law to tackle hot is sue s, effective statutory duty m ust be, without a uthori zation, is not availabl e. Such as construction are as, s ome cadre s are be cause there i s no procedure is followed by the rule s, pai d a heavy price, w e shoul d learn from them, i n strict a ccordance with the law on bi ddi ng and im plementat ion .. . Promise d to give preferenti al pol icies for e nterpri ses, hesitant to cash or ca sh not at all. Mas ses feel strongly about the se iss ues, it i s ne cessary t o be s olved. To a ccel erate decentralizati on. S pecificati on li st list list of powers, res ponsi bili ties a nd neg ative, clearance, revocation does not ada pt to the current sit uation of the development of policy document s, espe cially the rig ht to admini strative examination a nd a pproval , the ca ncellation must be cancele d, the delegation must be de centralize d to achieve zer o-w ait, one-st op, seamless, im prove admi nistrative efficiency and servi ce levels. In parti cula r, the delegation of powers must be ca ught properly, never able t o loft is no answ er, no one care s, ca use backfire, people work harde r. To carry o ut the campaign. Crack dow n on law enfor cement regulati ons, uncivil a nd not as, a s undermini ng economic development, s uch as envir onme ntal problems, pay close attention to the gras s-r oots level w eaknesses, stri ctly investigate and dea l with the gras s-r oots level corr upti on and de nial of Justi ce agai nst the intere sts of the mass es, s uch as corruption a nd corr uption, rut hles s pe ople ar ound "flies", further optimization of the development envir onme nt. In particular, stre ngthe ning the construction of Governme nt credit, a nd trustworthy practice for companie s and i nvestors , and must not break faith with t he people, pr omises a nd the promi se to the society. To buil d a new of law to visit and contribute to make visits to t he vexatious visits arroga nce . On t hese i ssue s, we need to have a pr oper understanding, shoul d take the lead to e stablis h a se nse of fear of the law, stre ngthen t he applicati on of the rule of law and the rule of law w ork of think ing and take up respons ibility for the construction of the rule of law. Put lear ning first. Pr emise is ignorant of the law, a bide by the law. Leadi ng cadre s at all levels s hould take the l ead in studyi ng the Constitution and laws a nd reg ulations cl osely relate d to w ork ass umed by, an a ccurate grasp of the basi c position of our party to address t he iss ue of the r ule of law, known for the scale t o do t hings , figure out how t o use it right , what thi ngs do, what not to do, it ca n never "legal literacy". To e nha nce t he aware ness of the rule of law. Firmly establish t he s upremacy of constituti onal la w, legal e quality before the, right by the law makes the right to statut ory, as w ell as the rule of la w, devel op habits of rule of la w, to di scard t he rule a nd cannot, must not get overri dde n by a uthorit y, at the right press ure. Shoul d take the lea d to abi de by. Fulfil its mandate in stri ct accordance with stat utory aut hority and pr oce dures , no matter what y ou want t o adhere to the la w, thoug ht of rule by law a nd t he rule of law to tackle hot is sues , effective statutory duty must be , without aut horizati on, is not available . Such as constructi on area s, s ome cadre s are be cause there i s no procedure is follow ed by t he rule s, pai d a heavy pri ce, we shoul d learn from them, i n strict accor dance with the law on bi ddi ng and im plementati on .. . Promise d to give prefere ntial policie s for enterpri ses, hesitant to cas h or ca sh not at all. Mas ses feel strongly about the se iss ues, it i s ne cessary t o be s olved. To a cce lerate de centralizati on. S pecifi cation li st list list of powers, res ponsi bilities a nd negati ve, cleara nce , revocati on does not adapt to the curre nt situati on of the devel opme nt of poli cy documents, espe cially the rig ht to admini strative examination a nd a pproval , the ca ncellation must be cancele d, the delegation must be de centralize d to achieve zer o-w ait, one-st op, seamless, im prove admi nistrative efficiency and servi ce levels. In parti cula r, the delegation of powers must be ca ught properly, never able t o loft is no answ er, no one care s, ca use backfire, people work harde r. To carry out the campaign. Crack dow n on law enfor cement regulati ons, uncivil a nd not as, a s undermini ng economic development, s uch as envir onme ntal problems, pay close attention to the gras s-r oots level w eaknesses, stri ctly investigate and dea l with the gras s-r oots level corr upti on and de nial of Justi ce agai nst the intere sts of the mass es, s uch as corruption a nd corr uption, rut hles s pe ople ar ound "flies", further optimization of the development envir onme nt. In particular, stre ngthe ning the construction of Governme nt credit, a nd tr ustworthy practice for companie s and i nvestors , and must not break faith with t he people, pr omises a nd the promi se to the society. To buil d a new

j elationshi p betw een Governme nt and busine ss. T he "two se ssi ons", G eneral Se cretary of "Pro", "clear" the wor d succi nctly sum marized t he ne w relationshi p betw een G overnme nt and busine ss, as pure politi cs, res hapi ng the politi cal relationshi p s pecifie d in the directi on. District lea ders i n ha ndl ing politi cal and busi ness relati ons, engage i n trading power for money, a nd finally stumble d, we a le sson, always kee p in mind that "Pro", "cle an" practi cing "Pr o", "clear". "Pro" is to ope n a sincer e e ngagement with private enterpri se to help s olve pra ctical difficulties ; " Clear "is to clarify the Divis ion of power, exercise d in a ccor dance wit h, private entre preneurs wit h innocent purity, not abusi ng power for pers onal gain, not to engage i n trading power for money. Thir d, in or der to maintai n fairnes s and j usti ce. Fairne ss and justice is t he lifeline of the rule of la w, is the best development envir onment. Curre ntly, lax law e nforceme nt and t he judicia l sect or in our region als o exist to varying degrees, law z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r enforceme nt departme nts and individual window unit s power for pers onal gai ns and bri bes , thick frie nds, relati ons, human ca ses, money ca ses i n whi ch ser iously infringe on the legitimate rights and interests of enterpri ses and pe opl e. Es peci ally some law enforceme nt and ins pe ction for profit purpose s, del iberately looking for cor porate loophole s, found dire ctly under t he ticket does not give business impr ovement opportunities. We recruit a compa ny doesn't ea sily, cultivati ng a busine ss more difficult, never for pers onal gain, systematic harassment, card, la st che cked to check to get the e nterprise colla pse d. To guarante e the legitimate rights a nd i nterests. Always proceed from the overall situati on of reform and devel opme nt of services, fully consider t he characteristi cs of pr oducti on a nd manageme nt in non -publi c enter prise s and social be nefits, a n accurate grasp of legal limits, pr otect the e nthusiasm of entre preneurs a nd practi tioners i n innovation and entrepr ene urshi p, e nha nci ng expectations a nd confidence. To prom ote strict e nforcement . Strengthe ning law e nforceme nt procedures, im prove law e nforcement performance evaluati on, strengthe ning t he s upervi sion of law enforcement, expl oration and practi ce of risk control mecha nism of law e nforceme nt to further sta ndardize the s ocial se curity, urba n manageme nt, road traffic admi nistrative law enfor cement, effectively free, extens ive law-e nforceme nt and lax enforceme nt of law enfor cement a nd ot her iss ues . To uphol d justi ce. Justi ce is t he last line of Defense t o safeguard fairness a nd j ustice , to unequivocally s upport the court s and procuratorates i nde pe nde ntly exercise level . .. Judicial a ctivities were rampa nt, must not be all owe d to run, favors, mone y, must not be a llowe d to knowingly vi olate the mis carriage, vi olations of the legitimate rights a nd i nterests of the mas ses must not be allowe d to a bus e of powe r, to make forest mass ca n be felt in every j udi cial ca ses i n equity and j usti ce. Four to dee pe n grass-r oots governance a ccording to la wchain do long, a nd put scale big. To s erve the development of enter prises . Duocuo s imultane ously improvi ng servi ce efficiency, buil d better publi c servi ces platform, enhance work efficie ncy, initiative to hel p busine sses solve the proj ect pr oce dures , financing l oans, iss u es such as la nd-use approval, re duce operating costs, busi nes s travel light and enhance the confi dence to ov ercome all ki nds of difficultie s and the Foundation, real entre prene urial pa ssion play e ntrepre neurs hip, enhance the i nternal vitality and creativit y. SI XING a n constr ucti on, promoting t he rule of law, tries to make the tra nsformation of forest devel opment XI Ge neral Secretary stre sse d, to reinvig orate Northeast China, optimize d devel opme nt environment is very important. Envir onme nt of rule of law mo st gather Moss, the most conducive to devel opme nt. Impr oving the lea ding cadre s ' using t he method of thought a nd the rule of law A dministration work, problem-s olving, the a bility to pr omote the devel opment , is the key to pr omoting t he rule of law. The law may affect the efficiency of out of the path of devel opment w ill be more smoot h, won devel opme nt gains w ill be s ustai ned, a nd e nd wit h greater efficiency. Leadi ng ca dres at all levels should take the lead i n respect of law la w, abi de by, a nd a ctively fost er Soci alist culture, a ctively prom oting the fiel d of multi-lev el governa nce accordi ng to la w, guide the mas ses and cons ciously a bide by the la w, failing to find law, solve t he problem by la w, in a ccorda nce w ith the law prevail. XXX admi nistration by law of leadi ng ca dres do not exist on the r ule of law, law enfor cement, casua l, and vow not to invest ors, the new s core s and other t urm oil. T hese im portant expositi ons on my distri ct create good development e nvironme nt with highly targeted and gui dance, e spe cially the General Se cretary pointed out that the chaos i n my area also exists to varyi ng degree s, s ome even quite seri ous. Lea ding cadres at all lev els must impr ove the development envir onme nt of rule of law as a fundame ntal task, a dhere to t he pr oblem ori ented, soli d and solv e the pr oblems i n the construction of rule of la w, to rule t he ne w effect for development envir onme nt improvement s. To hol d "key minority". Lea ders of thi s group, althoug h few in number, but the effect is critical. If a local lea ders ta ke the lea d right a ccor ding to la w, i n accorda nce with the law, the local CPPCC fresh, pragmati c and efficient devel opme nt environment. Conversely, if a local lea ders of ignoring t he law, impunity, not only the political environment will be de stroyed, will have seri ous implicati ons for the devel opme nt environment. Now, s ome leadi ng ca dres lack of awarenes s on the importance of learni ng, that lear n or not does not matter. Thi nk efficiency is too low too much, act a ccordi ng to the proce dur e, than a n executive order getting along with. I n deal ing with com plex iss ues, often speak of "settling" and "done"; on the iss ue of ha ndli ng letters an d visits, l ike to spend money and buy stop a nd sta ble, but di sregard the la w admini stration, i n accordance with the law, t he rule cha in do long, and put scal e big. To serve t he deve lopme nt of enter prises . Duocuo sim ultane ously improving service efficiency, buil d better publi c servi ces platform, enha nce work efficie ncy, i nitiative to hel p busine sse s solve t he pr oject proce dure s, f inancing l oans, iss ues such as la nd -use approval, re duce operating costs, busi nes s travel light and enhance the confi dence to ov ercome all ki nds of difficultie s and the Foundati on, real entrepr ene urial pa ssion play e ntrepre neurs hip, enhance the interna l vitalit y and creativity. SI XING an constructi on, promoti ng the rule of law, trie s to make the transformati on of forest deve lopme nt XI General Secretary stress ed, to rei nvigorate Northeast Chi na, optimized development envir onme nt is very importa nt. Environm ent of rul e of law most gather Mos s, the most conducive t o devel opment . Improvi ng the lea ding ca dres ' using the method of thought a nd the rule of law A dministration work, problem-s olving , the a bility to pr omote the development, is t he key to prom oting the r ule of law. The law may affect the efficiency of out of the path of development will be more smooth, w on development gai ns will be s ustaine d, and end with greater efficie ncy. Leadi ng cadre s at all levels s hould take the lead i n respe ct of law law, abi de by, and actively foster Socialist cult ure, actively promoti ng the field of multi-level gover nance a ccording t o law, g uide t he masse s and cons ciously abi de by t he law, failing to find la w, s olve the problem by law, in accor da nce wit h the law prevail. XXX admini stration by law of leadi ng ca dres do not exist on the rule of la w, law enfor cement, cas ual, and vow not to inve stors, the new score s and other turmoil. T hes e importa nt expos itions on my district create g ood devel opment e nvironment with highly targeted a nd g uida nce, e spe cially the General Secretary pointe d out t hat the chaos in my area also exi sts to varying degrees, some even quite s erious. Leadi ng cadre s at all levels must improve the devel opment e nvironme nt of rule of law as a fundamental task, a dher e to the probl em oriente d, solid a nd s olve the probl ems in the construction of rule of law, to rule the new effect for devel opment e nvironment improveme nts. To hol d "key minority". Lea ders of thi s group, althoug h few in number, but t he effect is critical. If a local leader s take the lead rig ht accordi ng to law, in accor dance wit h the la w, the l ocal CPPCC fresh, pragmatic and efficient development e nvironme nt. Conversel y, if a local leader s of ignori ng the law, impunity, not only the politi cal envir onme nt wil l be destroye d, will have seri ous im plicati ons for the devel opme nt environment. Now, some lea ding cadre s lack of aware ness on t he importa nce of learni ng, that lear n or not doe s not matter. Think efficie ncy i s too l ow too much, act a ccording t o the pr oce dur e, t han a n executive order getting al ong wit h. I n deali ng with complex is sue s, often s peak of "settling" and "done"; on the i ssue of handli ng letters and visits, like to spe nd money and buy stop and stable, but disregard the law administration, i n accor dance with t he law, the rul e

2、已知 P( X ? k ) ? c ?1?k / k!, (k ? 1,2,?), 其中 ? ? 0 ,则 c =( D ) A) e
??

B) e

?

C) e

??

-1

D) e -1

?

3、下列函数中, ( B )可以作为连续型随机变量的概率密度。 A) f ( x) ? ?

?sin x, ? ? x ? 3? / 2 ?? sin x, ? ? x ? 3? / 2 ,B) g ( x) ? ? 其它 其它 ?0, ?0,

C)

? ( x) ? ?

?cos x, ? ? x ? 3? / 2 ?1 ? cos x, ? ? x ? 3? / 2 D) h( x) ? ? 其它 其它 ?0, ?0,

4、如下四个函数,哪个不能作为随机变量 X 的分布函数( B )

x?0 ?0, ?1 / 3, 0 ? x ? 1 ? A) F1 ( x) ? ? ?1 / 2, 1 ? x ? 2 ? x?2 ?1,
x?0 ?0, ? 2 C) F3 ( x) ? ? x / 4, 0 ? x ? 2 ?1, x?2 ?

x?0 ?0, ? B) F2 ( x) ? ? ln(1 ? x) , x?0 ? ? 1? x

D) F4 ( x) ? ?

?1 ? e ? x , ?0,

x?0 x?0

5、设 X ~ N (0, 1) , Y ? 2 X ? 1,则 Y ~ ( B ) A) N (0, 1) B) N (?1, 4) C) N (?1, 3) D) N (?1, 1)

二、填空题
1 、 设 随 机 变 量 X 的 分 布 律 为 P( x ? k ) ? a

?k
k!

(k ? 0,1,2,?), ? ? 0 为 常 数 , 则 常 数

a ? e ?? 。
2、 已知随机变量 X 的分布函数的是 F ( x) ? A ? B arctanx, 则 A ? 0.5 ;B ? 1/π ;

P{| X |? 1} ?

0.5

。 10 。

} ? 0.16 , 则 ? ? 3、设 X ~ N (100 ,? 2 ) ,且 P{ X ? 110
2

4、 设随机变量 K 在 (1, 6) 上服从均匀分布, 则方程 x ? Kx ? 1 ? 0 有实根的概率是 0.8 。 5 、 设 随 机 变 量 X 的 概 率 密 度 为 f ( x) ?

1 2 ?

e

?

( x ?3) 2 4

, (?? ? x ? ?) , 则

Y ?

X ?3 2

~ N (0, 1)

W A q C N z S G I X V F . k T x b w v g '" y ,f h c m ln o r e t u ip d s a 形 情 止 禁 律 作 以 可 民 公 织 组 他 其 、 法 力 能 偿 清 代 有 。 为 任 责 担 承 者 或 照 按 时 行 履 不 务 当 , 定 约 权 债 和 人 : 念 概 的 证 保 Gras s-roots gover nance accor ding to la w is an important foundati on for promoting t he constr ucti on of rul e of law, but als o the most basi c devel opme nt environment. D espite my good s ocial order i n Ge neral, but there are law -abi ding consci ousne ss, s ocia l order i s not sta ndar d, regardle ss of faith, Twining visit visit a nd other outstanding problems. We w ant to active ly promote t he field of multi -level gover nance accor ding to la w, pr omote the continuous improveme nt of the s ocial e nvironment. To pr omote universal complia nce . Actively foster the r ule of law culture , carry out law publi city a nd educati on on hone sty and tr ustwort hine ss, guide the masses a nd consci ously abi de by the law, faili ng to find method, problem -solvi ng method, method of gradually changi ng the worl d, he is not looki ng for but some one "uns poken r ules", formed all la w la w, a bide by the good atmosphere. To s trengthen t he comprehensive ma nagement of publ ic se curit y. Dee pe ning peace xi ngan constr ucti on, str ongly 3 " A f T . y p w g k u h n s d c a iv ,t m le b o r against viole nce crime, mafia and serious crimi nal offences, to protect t he legitimate rights and interest s of citize ns, legal persons, carry out criminal poli cy of temper justice wit h mercy, the maximum stimulating social vitality, a nd ear nestly safeguar d social harm ony and stabil ity. To res olve social confli cts by law. To further sm ooth cha nnels of reporting s ocial conditi ons a nd public opi nion, improvi ng regulati on, ar bitration, a s well as dispute res oluti on mechani sms, impleme nt fully the petitioners ' cas es "third -party" heari ngs and s upervi sing system of letters a nd cal ls, and to res olve the i nvolved law laws uit into t he or bit of rule of la w, vexatious, Twini ng visit visit, distur bing s ocial order a nd other malici ous extortion, resol utely cra ck down. F ive, improvi ng cadre s V itale, provi de strong prote ction for forest development XI Ge neral Secretary stre ssed t hat the compre hensive revitaliza tion in Northeast China, needs a hig h quality, s olid styl e, ca dres of the dare to pla y. Ca dre ca dres is a pledge, should want to do work and abl e to do good, ent husiasm is param ount . Treat party cadres , it is ne cess ary to Strict manageme nt, and warm care, e nable t he br oad mass es of ca dres work hard w ork, this i s two parall el principles. I n strict a ccordance wit h the sta ndar ds of good ca dres se lecti on a nd a ppoint ment, the real officers , dare officer s, those w ho wa nt to play, good as excell ent ca dres at all levels of leaders hip i n the pa st. At prese nt, some lea ding cadres w ork initiative i s not high, beyond political , idle , lazy governance governa nce, not as, sl ow, mes sy and a phenome non still exist to varyi ng de grees, affected and restricted economi c and social develo pment. We m ust mobilize the e nthusiasm of cadres a s an urge nt task, adhere to combi nation of incentives a nd constraints, a nd a dhere to the stri ct management a nd warm care, pra ctical s oluti on "for the officer s not to" pr oblem, motivate cadres and better lea d the masse s to an undertaking , the ca dres a nd create t he ne w achievement in a dare to play, good at s how s as new. To i dentify the probl em, accurate pulse of law to visit and contribute to make visits to t he vexatious v isits arroga nce . On t hese i ssue s, we need to have a pr oper understanding, shoul d take the lead to e stablis h a se nse of fear of the law, stre ngthen t he applicati on of the rule of law and the r ule of law work of thinki ng and take up res ponsi bility for the constructi on of the rule of law. Put lear ning first. Premise i s ignorant of the la w, abi de by t he law. Lea ding ca dres at all level s shoul d take the lea d in studying t he Constit ution a nd la ws and regulati ons closely related to w or k assumed by, a n accurate gras p of the ba sic positi on of our party to a ddre ss the i ssue of the rule of law, know n for the s cale to do thi ngs, figure out how to use it right, w hat thing s do, what not to do, it can never "legal literacy". To enhance the aw arenes s of the r ule of law. Firmly establis h the supremacy of constit utional law, l egal equality before the, right by the law makes the right to statutory, as well as t he rule of law, develop ha bits of rul e of law, to dis card the r ule and ca nnot, must not get overridden by aut hority, at the right pre ssure . Should take the lead to a bide by. Fulfil its mandate i n strict a ccorda nce wit h statutory a uthority and procedures, no matter what you want to a dhere t o the la w, thought of rule by law and the rul e of law to tackle hot is sue s, effective statutory duty must be, without a uthori zation, is not availabl e. Such as construction are as, s ome cadre s are be cause there i s no procedure is followed by the rule s, pai d a heavy price, w e shoul d learn from them, i n strict a ccordance with the law on bi ddi ng and im plementation .. . Promise d to g ive preferenti al pol icies for e nterpri ses, hesitant to cash or ca sh not at all. Mas ses feel strongly about the se iss ues, it i s ne cessary t o be s olved. To a ccel erate decentralizati on. S pecificati on li st list list of powers, res ponsi bilities a nd neg ative, cl earance, revocation does not ada pt to the current sit uation of the development of policy document s, espe cially the rig ht to admini strative examination a nd a pproval , the ca ncellation must be cancele d, the delegation must be de centralize d to achieve zer o-w ait, one-st op, seamless, im prove admi nistrative efficiency and servi ce levels. In parti cula r, the delegation of powers must be ca ught properly, never able t o loft is no answ er, no one care s, ca use backfire, people work harde r. To carry out the campaign. Crack dow n on law enfor cement regulati ons, uncivil a nd not as, a s undermini ng economic development, s uch as envir onme ntal problems, pay close attention to the gras s-r oots level w eaknesses, stri ctly investigate and dea l with the gras s-r oots level corr upti on and de nial of Justi ce agai nst the intere sts of the mass es, s uch as corruption a nd corr uption, rut hles s pe ople ar ound "flies", further optimization of the development envir onme nt. In particular, stre ngthe ning the construction of Governme nt credit, a nd trustwor thy practice for companie s and i nvestors , and must not break faith with t he people, pr omises a nd the promi se to the society. To buil d a new of law to visit and contribute to make visits to t he vexatious visits arroga nce . On t hese i ssue s, we need to have a pr oper understanding, shoul d take the lead to e stablis h a se nse of fear of the law, stre ngthen t he applicati on of the rule of law and the rule of law w ork of think ing and take up respons ibility for the construction of the rule of law. Put lear ning first. Pr emise is ignorant of the law, a bide by the law. Leadi ng cadre s at all levels s hould take the l ead in studyi ng the Constitution and laws a nd reg ulations cl osely relate d to w ork ass umed by, an a ccurate grasp of the basi c position of our party to address t he iss ue of the r ule of law, known for the scale t o do t hings , figure out how t o use it right , what thi ngs do, what not to do, it ca n never "legal literacy". To e nha nce t he aware ness of the rule of law. Firmly establish t he s upremacy of constituti onal la w, le gal e quality before the, right by the law makes the right to statut ory, as w ell as the rule of la w, devel op habits of rule of la w, to di scard t he rule a nd cannot, must not get overri dde n by a uthorit y, at the right press ure. Shoul d take the lea d to abi de by. Fulfil its mandate in stri ct accordance with stat utory aut hority and pr oce dures , no matter what y ou want t o adhere to the la w, thoug ht of rule by law a nd t he rule of law to tackle hot is sues , effective statutory duty must be , without aut horizati on, is not available . Such as constructi on area s, s ome cadre s are be cause there i s no procedure is follow ed by t he rule s, pai d a heavy pri ce, we shoul d learn from them, i n strict accor dance with the law on bi ddi ng and im plementati on .. . Promise d to give prefere ntial policie s for enterpri ses, hesitant to cas h or ca sh not at all. Mas ses feel strongly about the se iss ues, it i s ne cessary t o be s olved. To a cce lerate de centralizati on. S pecifi cation li st list list of powers, res ponsi bilities a nd negative, cleara nce , revoca ti on does not adapt to the curre nt situati on of the devel opme nt of poli cy documents, espe cially the rig ht to admini strative examination a nd a pproval , the ca ncellation must be cancele d, the delegation must be de centralize d to achieve zer o-w ait, one-st op, seamless, im prove admi nistrative efficiency and servi ce levels. In parti cula r, the delegation of powers must be ca ught properly, neve r able t o loft is no answ er, no one care s, ca use backfire, people work harde r. To carry out the campaign. Crack dow n on law enfor cement regulati ons, uncivil a nd not as, a s undermini ng economic development, s uch as envir onme ntal problems, pay close attentio n to the gras s-r oots level w eaknesses, stri ctly investigate and dea l with the gras s-r oots level corr upti on and de nial of Justi ce agai nst the intere sts of the mass es, s uch as corruption a nd corr uption, rut hles s pe ople ar ound "flies", further optimization of the development envir onme nt. In particular, stre ngthe ning the construction of Governme nt credit, a nd trustworthy practice for companie s and i nvestors , and must not break faith with t he people, pr omises a nd the promi se to the society. To buil d a new

j elationshi p betw een Governme nt and busine ss. T he "two se ssi ons", G eneral Se cretary of "Pro", "clear" the wor d succi nctly sum marized t he ne w relationshi p betw een G overnme nt and busine ss, as pure politi cs, res hapi ng the politi cal relationshi p s pecifie d in the directi on. District lea ders i n ha ndl ing politi cal and busi ness relati ons, engage i n trading power for money, a nd finally stumble d, we a le sson, alway s kee p in mind that "Pro", "cle an" practi cing "Pr o", "clear". "Pro" is to ope n a sincere e ngagement with private enterpri se to help s olve pra ctical difficulties ; " Clear "is to clarify the Divis ion of power, exercise d in a ccor dance wit h, private entre preneurs wit h innocent purity, not abusi ng power for pers onal gain, not to engage i n trading power for money. Thir d, in or der to maintai n fairnes s and j usti ce. Fairne ss and justice is t he lifeline of the rule of la w, is the best development envir onment. Curre nt ly, lax law e nforceme nt and t he judicia l sect or in our region als o exist to varying degrees, law z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r enforceme nt departme nts and individual window unit s power for pers onal gai ns and bri bes , thick frie nds, relati ons, human ca ses, money ca ses i n whi ch ser iously infringe on the legitimate rights and interests of enterpri ses and pe opl e. Es peci ally some law enforceme nt and ins pe ction for profi t purpose s, del iberately looking for cor porate loophole s, found dire ctly under t he ticket does not give business impr ovement opportunities. We recruit a compa ny doesn't ea sily, cultivati ng a busine ss more difficult, never for pers onal gain, systematic hara ssment, card, la st che cked to check to get the e nterprise colla pse d. To guarante e the legitimate rights a nd i nterests. Always proceed from the overall situati on of reform and devel opme nt of services, fully consider t he characteristi cs of pr oducti on a nd manageme nt in non-publi c enter prise s and social be nefits, a n accurate grasp of legal limits, pr otect the e nthusiasm of entre preneurs a nd practitioners i n innovation and entrepr ene urshi p, e nha nci ng expectations a nd confidence. To prom ote strict e nforcement . Strengthe ning law e nforceme nt procedures, im prove law e nforcement performance evaluati on, strengthe ning t he s upervi sion of law enforc ement, expl oration and practi ce of risk control mecha nism of law e nforceme nt to further sta ndardize the s ocial se curity, urba n manageme nt, road traffic admi nistrative law enfor cement, effectively free, extens ive law-e nforceme nt and lax enforceme nt of law enfor cement a nd ot her iss ues . To uphol d justi ce. Justi ce is t he last line of Defense t o safeguard fairness a nd j ustice , to unequivocally s upport the court s and procuratorates i nde pe nde ntly exercise level . .. Judicial a ctivities were rampa nt, must not be all owe d to run, favors, mone y, must not be a llowe d to knowingly vi olate the mis carriage, vi olations of the legitimate rights a nd i nterests of the mas ses must not be allowe d to a bus e of powe r, to make forest mass ca n be felt in every j udi cial ca ses i n equity and j usti ce. Four to dee pe n grass-r oots governance a ccording to la wchain do long, a nd put scale big. To s erve the development of enter prises . Duocuo s imultane ously improvi ng servi ce efficiency, buil d better publi c servi ces platform, enhance work efficie ncy, initiative to hel p busine sses solve the proj ect pr oce dures , financing l oans, iss ues such as la nd -use approval, re duce operating costs, busi nes s travel light and enhance the confi dence to ov ercome all ki nds of difficultie s and the Foundation, real entre prene urial pa ssion play e ntrepre neurs hip, enhance the i nternal vitality and creativit y. SI XING a n constr ucti on, promoting t he r ule of law, tries to make the tra nsformation of forest devel opment XI Ge neral Secretary stre sse d, to reinvig orate Northeast C hina, optimize d devel opme nt environment is very important. Envir onme nt of rule of law most gather Moss, the most conducive to devel opme nt. Impr oving the lea ding cadre s ' using t he method of thought a nd the rule of law A dministration work, problem -s olving, the a bility to pr omote the devel opment , is the key to pr omoting t he rule of law. The law may affect the efficiency of out of the path of devel opment w ill be more smoot h, won devel opme nt gains w ill be s ustai ned, a nd e nd wit h greater efficiency. Leadi ng ca dres at all levels should take the lead i n respect of law la w, abi de by, a nd a ctively foster Soci alist culture, a ctively prom oting the fiel d of multi-lev el governa nce accordi ng to la w, guide the mas ses and cons ciously a bide by the la w, failing to find law, solve t he problem by la w, in a ccorda nce w ith the law prevail. XXX admi nistration by law of leadi ng ca dres do not exist on the r ule of law, law enfor cement, casua l, and vow not to invest ors, the new s core s and other t urmoil. T hese im portant expositi ons on my distri ct create good development e nvironme nt with highly targeted and gui dance, e spe cially the General Se cretary pointed out that the chaos i n my area also exists to varyi ng degree s, s ome even quite seri ous. Lea ding cadres at all lev els must impr ove the development envir onme nt of rule of law as a fundame ntal task, a dhere to t he pr oblem ori ented, soli d and solv e the pr oblems i n the co nstruction of rule of la w, to rule t he ne w effect for development envir onme nt improvement s. To hol d "key minority". Lea ders of thi s group, althoug h few in number, but the effect is critical. If a local lea ders take the lea d right a ccor ding to la w, i n accorda nce with the law, the local CPPCC fresh, pragmati c and efficient devel opme nt environment. Conversely, if a local lea ders of ignoring t he law, impunity, not only the political environment will be de stroyed, will have seri ous implicati ons for the devel opme nt environment. Now, s ome leadi ng ca dres lack of awarenes s on the importance of learni ng, that lear n or not does not matter. Thi nk efficiency is too low too much, act a ccordi ng to the proce dur e, than a n executive order getting along with. I n deal ing with com plex iss ues, often speak of "settling" and "done"; on the iss ue of ha ndli ng letters and visits, l ike to spend money and buy stop a nd sta ble, but di sregard the la w admini stration, i n accordance with the law, t he rule cha in do long, and put scal e big. To serve t he deve lopme nt of enter prises . Duocuo sim ultane ously improving service efficiency, buil d better publi c servi ces platform , enha nce work efficie ncy, i nitiative to hel p busine sse s solve t he pr oject proce dure s, financing l oans, iss ues such as la nd -use approval, re duce operating costs, busi nes s travel light and enhance the confi dence to ov ercome all ki nds of difficultie s and the Foundati on, real entrepr ene urial pa ssion play e ntrepre neurs hip, enhance the interna l vitality and creativity. SI XING an construct i on, promoti ng the rule of law, trie s to make the transformati on of forest deve lopme nt XI General Secretary stress ed, to rei nvigorate Northeast Chi na, optimized development envir onme nt is very importa nt. Environment of rul e of law most gather Mos s, the most conducive t o devel opment . Improvi ng the lea ding ca dres ' using the method of thought a nd the rule of law A dministration work, problem-s olving , the a bility to pr omote the development, is t he key to prom oting the r ule of law. The law may affect the efficiency of out of the path of development will be more smooth, w on development gai ns will be s ustaine d, and end with greater efficie ncy. Leadi ng cadre s at all levels s hould take the lead i n respe ct of law law, abi de by, and actively foster Socialist cult ure, actively promoti ng the field of multi-level gover nance a ccording t o law, g uide t he masse s and cons ciously abi de by t he law, failing to find la w, s olve the problem by law, in accor da nce wit h the law prevail. XXX admini stration by law of leadi ng ca dres do not exist on the rule of la w, law enfor cement, cas ual, and vow not to inve stors, the new score s and other turmoil. T hes e importa nt expos itions on my district create g ood devel opment e nvironment with highly targeted a nd g uida nce, e spe cially the General Secreta ry pointe d out t hat the chaos in my area also exi sts to varying degrees, some even quite s erious. Leadi ng cadre s at all levels must improve the devel opment e nvironme nt of rule of law as a fundamental task, a dher e to the probl em oriente d, solid a nd s olve the probl ems in the construction of rule of law, to rule the new effect for devel opment e nvironment improveme nts. To hol d "key mi nority". Lea ders of thi s group, althoug h few in number, but t he effect is critical. If a local leader s take the lead rig ht accordi ng to law, in accor dance wit h the la w, the l ocal CPPCC fresh, pragmatic and efficient development e nvironme nt. Conversel y, if a local leader s of ignori ng the law, impunity, not only the politi cal envir onme nt will be destroye d, will have seri ous im plicati ons for the devel opme nt environment. Now, some lea ding cadre s lack of aware ness on t he importa nce of learni ng, that lear n or n ot doe s not matter. Think efficie ncy i s too l ow too much, act a ccording t o the pr oce dure, t han a n executive order getting al ong wit h. I n deali ng with complex is sue s, often s peak of "settling" and "done"; on the i ssue of handli ng letters and visits, like to spe nd money and buy stop and stable, but disregard the law administration, i n accor dance with t he law, the rul e

6、若对于连续型随机变量 X 有 P{X ? x2 } ? 1 ? ? , P{X ? x1} ? 1 ? ? ,其中 x1 ? x 2 , 则 P{x1 ? X ? x2 } ? 1 ? ? ? ? 7、设随机变量 X 在区间(0,10)上服从均匀分布,则 P(1.5 ? X ? 6.5) ? 1/2 __。

三、判断题
1、 连续型随机变量的概率密度一定是连续函数。 ( ╳ ) ( ╳ )

g ( X ) 和 h( X ) 的分布函数相同, 2、 则一定有 g ( X ) = h( X ) 。

四、解答题

x ? ?1 ?0, ?0.2, ? 1 ? x ? 2 ? 1、 设随机变量 X 的分布函数为: F ( x) ? P{ X ? x} ? ? ?0.7, 2 ? x ? 4 ? ?1, x ? 4
求 1) X 的分布律;2) P{ X ? 3} ;3) Y ? 3 X ? 1 的分布律。 解:1) X 的分布律为 —1 X P 0.2

2 0.5

4 0.3

2) P{ X ? 3} ? 1 ? P{ X ? 3} ? 1 ? F (3) ? P{ X ? 3} ? 1 ? 0.7 ? 0 ? 0.3 3) Y ? 3 X ? 1 的分布律为 Y —4 5 P 0.2 0.5

11 0.3

?0 ? 2 2、设连续型随机变量 X 的分布函数为: F ? x ? ? ? Ax ?1 ?

x?0 0 ? x ?1 x ?1

求: 1)系数 A ;2)概率密度 ? ?x ? ; 3) P{0.3 ? X ? 0.7} ;4) Y ? 2 X ? 1的概率密度。

?0 , x ? 0 ? 2 解:1)与 2)? F ? x ? ? ? Ax , 0 ? x ? 1 ?1 , x ? 1 ?
又?

?2 Ax, ? ? ?x ? = F ' ? x ? ? ? ?0 ,

0 ? x ?1 其它

? ? ?x? dx ? 1
??

??

? ? 2 Ax dx ? 1 ? A ? 1 ,
0

1

故概率密度为: ? ? x ? ? ?

?2 x ?0

0 ? x ?1 其它

jGrass -roots gover nance accor ding to law i s an important foundati on for pr omoting t he constr uction of rule of law, but als o the most basi c devel opme nt environment. De spite my good s ocial order i n General, but there are law -abi ding consci ousne ss, s ocial order is not sta ndar d, regardle ss of faith, Twining visit visit a nd other outstanding problems. We w ant to active ly promote t he field of multi -level gover nance accor ding to la w, pr omote the continuous improveme nt of the s ocial e nvironment. To pr omote universal complia nce . Actively foster the r ule of law culture , carry out law publi city a nd educati on on hone sty and tr ustwort hine ss, guide the masses a nd consci ously abi de by the law, faili ng to find method, problem -solvi ng method, method of gradually changi ng the worl d, he is not looki ng for but some one "uns poken r ules", formed all la w law, a bide by the good atmosphere. To s trengthen t he comprehensive ma nagement of publ ic se curit y. Dee pe ning peace xi ngan constr ucti on, str ongly z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r 形 情 止 禁 律 作 以 可 民 公 织 组 他 其 、 法 力 能 偿 清 代 有 。 为 任 责 担 承 者 或 照 按 时 行 履 不 务 当 , 定 约 权 债 和 人 : 念 概 的 证 保 against viole nce crime, mafia and serious crimi nal offences, to protect t he legitimate rights and interest s of citize ns, legal persons, carry out criminal poli cy of temper justice wit h mercy, the maximum stimulating social vitality, a nd ear nestly safeguar d social harm ony and stability. To res olve social confli cts by law. To further sm ooth cha nnels of reporting s ocial conditi ons a nd public opi nion, improvi ng regulati on, ar bitration, a s well as dispute res oluti on mechani sms, impleme nt fully the petitioners ' cas es "third-party" heari ngs and s upervi sing system of letters a nd cal ls, and to res olve the i nvolved law laws uit into t he or bit of rule of la w, vexatious, Twini ng visit visit, distur bing s ocial order a nd other malici ous extortion, resol utely cra ck down. F ive, improvi ng cadre s V itale, provi de strong prote ction for forest development XI Ge neral Secretary stre ssed t hat the compre hensiv e revitaliza tion in Northeast China, needs a hig h quality, s olid styl e, ca dres of the dare to pla y. Ca dre ca dres is a pledge, should want to do work and abl e to do good, ent husiasm is param ount . Treat party cadres , it is ne cess ary to Strict manageme nt, and warm care, e nable t he br oad mass es of ca dres work hard w ork, this i s two parall el principles. I n strict a ccordance wit h the st a ndar ds of good ca dres se lecti on a nd a ppoint ment, the real officers , dare officer s, those w ho wa nt to play, good as excell ent ca dres at all levels of leaders hip i n the pa st. At prese nt, some lea ding cadres w ork initiative i s not high, beyond political , idle , lazy governance governa nce, not as, sl ow, mes sy and a phenome non still exist to varyi ng de grees, affected and restricted economi c and social development. We m ust mobilize the e nthusiasm of cadres a s an urge nt task, adhere to combi nation of incentives a nd constraints, a nd a dhere to the stri ct management a nd warm care, pra ctical s oluti on "for the officer s not to" pr oblem, motivate cadres and better lea d the masse s to an undertaking , the ca dres a nd create t he ne w achievement in a dare to play, good at s how s as new. To i dentify the probl em, accurate pulse of law to visit and contribute to make visits to t he vexatious visits arroga nce . On t hese i ssue s, we need to have a pr oper understanding, shoul d take the lead to e stablis h a se nse of fear of the law, stre ng then t he applicati on of the rule of law and the r ule of law work of thinki ng and take up res ponsi bility for the constructi on of the rule of law. Put learning first. Premise i s ignorant of the la w, abi de by t he law. Lea ding ca dres at all level s shoul d take t he lea d in studying t he Constit ution a nd la ws and regulati ons closely related to w or k assumed by, a n accurate gras p of the ba sic positi on of our party to a ddre ss the i ssue of the rule of law, know n for the s cale to do thi ngs, figure out how to use it right, w hat thing s do, what not to do, it can never "legal literacy". To enhance the aw arenes s of the r ule of law. Firmly establis h the supremacy of constit utional law, l egal equality before the, right by the law makes the right to statutory, as well as t he rule of law, develop ha bits of rul e of law, to dis card the r ule and ca nnot, must not get overridden by aut hority, at the right pre ssure . Should take the lead to a bide by. Fulfil its mandate i n strict a ccorda nce wit h statutory a uthority and procedures, no mat ter what you want to a dhere t o the la w, thought of rule by law and the rul e of law to tackle hot is sue s, effective statutory duty m ust be, without a uthori zation, is not availabl e. Such as construction are as, s ome cadre s are be cause there i s no procedure is followed by the rule s, pai d a heavy price, w e shoul d learn from them, i n strict a ccordance with the law on bi ddi ng and im plementat ion .. . Promise d to give preferenti al pol icies for e nterpri ses, hesitant to cash or ca sh not at all. Mas ses feel strongly about the se iss ues, it i s ne cessary t o be s olved. To a ccel erate decentralizati on. S pecificati on li st list list of powers, res ponsi bili ties a nd neg ative, clearance, revocation does not ada pt to the current sit uation of the development of policy document s, espe cially the rig ht to admini strative examination a nd a pproval , the ca ncellation must be cancele d, the delegation must be de centralize d to achieve zer o-w ait, one-st op, seamless, im prove admi nistrative efficiency and servi ce levels. In parti cula r, the delegation of powers must be ca ught properly, never able t o loft is no answ er, no one care s, ca use backfire, people work harde r. To carry o ut the campaign. Crack dow n on law enfor cement regulati ons, uncivil a nd not as, a s undermini ng economic development, s uch as envir onme ntal problems, pay close attention to the gras s-r oots level w eaknesses, stri ctly investigate and dea l with the gras s-r oots level corr upti on and de nial of Justi ce agai nst the intere sts of the mass es, s uch as corruption a nd corr uption, rut hles s pe ople ar ound "flies", further optimization of the development envir onme nt. In particular, stre ngthe ning the construction of Governme nt credit, a nd trustworthy practice for companie s and i nvestors , and must not break faith with t he people, pr omises a nd the promi se to the society. To buil d a new of law to visit and contribute to make visits to t he vexatious visits arroga nce . On t hese i ssue s, we need to have a pr oper understanding, shoul d take the lead to e stablis h a se nse of fear of the law, stre ngthen t he applicati on of the rule of law and the rule of law w ork of think ing and take up respons ibility for the construction of the rule of law. Put lear ning first. Pr emise is ignorant of the law, a bide by the law. Leadi ng cadre s at all levels s hould take the l ead in studyi ng the Constitution and laws a nd reg ulations cl osely relate d to w ork ass umed by, an a ccurate grasp of the basi c position of our party to address t he iss ue of the r ule of law, known for the scale t o do t hings , figure out how t o use it right , what thi ngs do, what not to do, it ca n never "legal literacy". To e nha nce t he aware ness of the rule of law. Firmly establish t he s upremacy of constituti onal la w, legal e quality before the, right by the law makes the right to statut ory, as w ell as the rule of la w, devel op habits of rule of la w, to di scard t he rule a nd cannot, must not get overri dde n by a uthorit y, at the right press ure. Shoul d take the lea d to abi de by. Fulfil its mandate in stri ct accordance with stat utory aut hority and pr oce dures , no matter what y ou want t o adhere to the la w, thoug ht of rule by law a nd t he rule of law to tackle hot is sues , effective statutory duty must be , without aut horizati on, is not available . Such as constructi on area s, s ome cadre s are be cause there i s no procedure is follow ed by t he rule s, pai d a heavy pri ce, we shoul d learn from them, i n strict accor dance with the law on bi ddi ng and im plementati on .. . Promise d to give prefere ntial policie s for enterpri ses, hesitant to cas h or ca sh not at all. Mas ses feel strongly about the se iss ues, it i s ne cessary t o be s olved. To a cce lerate de centralizati on. S pecifi cation li st list list of powers, res ponsi bilities a nd negati ve, cleara nce , revocati on does not adapt to the curre nt situati on of the devel opme nt of poli cy documents, espe cially the rig ht to admini strative examination a nd a pproval , the ca ncellation must be cancele d, the delegation must be de centralize d to achieve zer o-w ait, one-st op, seamless, im prove admi nistrative efficiency and servi ce levels. In parti cula r, the delegation of powers must be ca ught properly, never able t o loft is no answ er, no one care s, ca use backfire, people work harde r. To carry out the campaign. Crack dow n on law enfor cement regulati ons, uncivil a nd not as, a s undermini ng economic development, s uch as envir onme ntal problems, pay close attention to the gras s-r oots level w eaknesses, stri ctly investigate and dea l with the gras s-r oots level corr upti on and de nial of Justi ce agai nst the intere sts of the mass es, s uch as corruption a nd corr uption, rut hles s pe ople ar ound "flies", further optimization of the development envir onme nt. In particular, stre ngthe ning the construction of Governme nt credit, a nd tr ustworthy practice for companie s and i nvestors , and must not break faith with t he people, pr omises a nd the promi se to the society. To buil d a new

j elationshi p betw een Governme nt and busine ss. T he "two se ssi ons", G eneral Se cretary of "Pro", "clear" the wor d succi nctly sum marized t he ne w relationshi p betw een G overnme nt and busine ss, as pure politi cs, res hapi ng the politi cal relationshi p s pecifie d in the directi on. District lea ders i n ha ndl ing politi cal and busi ness relati ons, engage i n trading power for money, a nd finally stumble d, we a le sson, always kee p in mind that "Pro", "cle an" practi cing "Pr o", "clear". "Pro" is to ope n a sincer e e ngagement with private enterpri se to help s olve pra ctical difficulties ; " Clear "is to clarify the Divis ion of power, exercise d in a ccor dance wit h, private entre preneurs wit h innocent purity, not abusi ng power for pers onal gain, not to engage i n trading power for money. Thir d, in or der to maintai n fairnes s and j usti ce. Fairne ss and justice is t he lifeline of the rule of la w, is the best development envir onment. Curre ntly, lax law e nforceme nt and t he judicia l sect or in our region als o exist to varying degrees, law z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r enforceme nt departme nts and individual window unit s power for pers onal gai ns and bri bes , thick frie nds, relati ons, human ca ses, money ca ses i n whi ch ser iously infringe on the legitimate rights and interests of enterpri ses and pe opl e. Es peci ally some law enforceme nt and ins pe ction for profit purpose s, del iberately looking for cor porate loophole s, found dire ctly under t he ticket does not give business impr ovement opportunities. We recruit a compa ny doesn't ea sily, cultivati ng a busine ss more difficult, never for pers onal gain, systematic harassment, card, la st che cked to check to get the e nterprise colla pse d. To guarante e the legitimate rights a nd i nterests. Always proceed from the overall situati on of reform and devel opme nt of services, fully consider t he characteristi cs of pr oducti on a nd manageme nt in non -publi c enter prise s and social be nefits, a n accurate grasp of legal limits, pr otect the e nthusiasm of entre preneurs a nd practi tioners i n innovation and entrepr ene urshi p, e nha nci ng expectations a nd confidence. To prom ote strict e nforcement . Strengthe ning law e nforceme nt procedures, im prove law e nforcement performance evaluati on, strengthe ning t he s upervi sion of law enforcement, expl oration and practi ce of risk control mecha nism of law e nforceme nt to further sta ndardize the s ocial se curity, urba n manageme nt, road traffic admi nistrative law enfor cement, effectively free, extens ive law-e nforceme nt and lax enforceme nt of law enfor cement a nd ot her iss ues . To uphol d justi ce. Justi ce is t he last line of Defense t o safeguard fairness a nd j ustice , to unequivocally s upport the court s and procuratorates i nde pe nde ntly exercise level . .. Judicial a ctivities were rampa nt, must not be all owe d to run, favors, mone y, must not be a llowe d to knowingly vi olate the mis carriage, vi olations of the legitimate rights a nd i nterests of the mas ses must not be allowe d to a bus e of powe r, to make forest mass ca n be felt in every j udi cial ca ses i n equity and j usti ce. Four to dee pe n grass-r oots governance a ccording to la wchain do long, a nd put scale big. To s erve the development of enter prises . Duocuo s imultane ously improvi ng servi ce efficiency, buil d better publi c servi ces platform, enhance work efficie ncy, initiative to hel p busine sses solve the proj ect pr oce dures , financing l oans, iss u es such as la nd-use approval, re duce operating costs, busi nes s travel light and enhance the confi dence to ov ercome all ki nds of difficultie s and the Foundation, real entre prene urial pa ssion play e ntrepre neurs hip, enhance the i nternal vitality and creativit y. SI XING a n constr ucti on, promoting t he rule of law, tries to make the tra nsformation of forest devel opment XI Ge neral Secretary stre sse d, to reinvig orate Northeast China, optimize d devel opme nt environment is very important. Envir onme nt of rule of law mo st gather Moss, the most conducive to devel opme nt. Impr oving the lea ding cadre s ' using t he method of thought a nd the rule of law A dministration work, problem-s olving, the a bility to pr omote the devel opment , is the key to pr omoting t he rule of law. The law may affect the efficiency of out of the path of devel opment w ill be more smoot h, won devel opme nt gains w ill be s ustai ned, a nd e nd wit h greater efficiency. Leadi ng ca dres at all levels should take the lead i n respect of law la w, abi de by, a nd a ctively fost er Soci alist culture, a ctively prom oting the fiel d of multi-lev el governa nce accordi ng to la w, guide the mas ses and cons ciously a bide by the la w, failing to find law, solve t he problem by la w, in a ccorda nce w ith the law prevail. XXX admi nistration by law of leadi ng ca dres do not exist on the r ule of law, law enfor cement, casua l, and vow not to invest ors, the new s core s and other t urm oil. T hese im portant expositi ons on my distri ct create good development e nvironme nt with highly targeted and gui dance, e spe cially the General Se cretary pointed out that the chaos i n my area also exists to varyi ng degree s, s ome even quite seri ous. Lea ding cadres at all lev els must impr ove the development envir onme nt of rule of law as a fundame ntal task, a dhere to t he pr oblem ori ented, soli d and solv e the pr oblems i n the construction of rule of la w, to rule t he ne w effect for development envir onme nt improvement s. To hol d "key minority". Lea ders of thi s group, althoug h few in number, but the effect is critical. If a local lea ders ta ke the lea d right a ccor ding to la w, i n accorda nce with the law, the local CPPCC fresh, pragmati c and efficient devel opme nt environment. Conversely, if a local lea ders of ignoring t he law, impunity, not only the political environment will be de stroyed, will have seri ous implicati ons for the devel opme nt environment. Now, s ome leadi ng ca dres lack of awarenes s on the importance of learni ng, that lear n or not does not matter. Thi nk efficiency is too low too much, act a ccordi ng to the proce dur e, than a n executive order getting along with. I n deal ing with com plex iss ues, often speak of "settling" and "done"; on the iss ue of ha ndli ng letters an d visits, l ike to spend money and buy stop a nd sta ble, but di sregard the la w admini stration, i n accordance with the law, t he rule cha in do long, and put scal e big. To serve t he deve lopme nt of enter prises . Duocuo sim ultane ously improving service efficiency, buil d better publi c servi ces platform, enha nce work efficie ncy, i nitiative to hel p busine sse s solve t he pr oject proce dure s, f inancing l oans, iss ues such as la nd -use approval, re duce operating costs, busi nes s travel light and enhance the confi dence to ov ercome all ki nds of difficultie s and the Foundati on, real entrepr ene urial pa ssion play e ntrepre neurs hip, enhance the interna l vitalit y and creativity. SI XING an constructi on, promoti ng the rule of law, trie s to make the transformati on of forest deve lopme nt XI General Secretary stress ed, to rei nvigorate Northeast Chi na, optimized development envir onme nt is very importa nt. Environm ent of rul e of law most gather Mos s, the most conducive t o devel opment . Improvi ng the lea ding ca dres ' using the method of thought a nd the rule of law A dministration work, problem-s olving , the a bility to pr omote the development, is t he key to prom oting the r ule of law. The law may affect the efficiency of out of the path of development will be more smooth, w on development gai ns will be s ustaine d, and end with greater efficie ncy. Leadi ng cadre s at all levels s hould take the lead i n respe ct of law law, abi de by, and actively foster Socialist cult ure, actively promoti ng the field of multi-level gover nance a ccording t o law, g uide t he masse s and cons ciously abi de by t he law, failing to find la w, s olve the problem by law, in accor da nce wit h the law prevail. XXX admini stration by law of leadi ng ca dres do not exist on the rule of la w, law enfor cement, cas ual, and vow not to inve stors, the new score s and other turmoil. T hes e importa nt expos itions on my district create g ood devel opment e nvironment with highly targeted a nd g uida nce, e spe cially the General Secretary pointe d out t hat the chaos in my area also exi sts to varying degrees, some even quite s erious. Leadi ng cadre s at all levels must improve the devel opment e nvironme nt of rule of law as a fundamental task, a dher e to the probl em oriente d, solid a nd s olve the probl ems in the construction of rule of law, to rule the new effect for devel opment e nvironment improveme nts. To hol d "key minority". Lea ders of thi s group, althoug h few in number, but t he effect is critical. If a local leader s take the lead rig ht accordi ng to law, in accor dance wit h the la w, the l ocal CPPCC fresh, pragmatic and efficient development e nvironme nt. Conversel y, if a local leader s of ignori ng the law, impunity, not only the politi cal envir onme nt wil l be destroye d, will have seri ous im plicati ons for the devel opme nt environment. Now, some lea ding cadre s lack of aware ness on t he importa nce of learni ng, that lear n or not doe s not matter. Think efficie ncy i s too l ow too much, act a ccording t o the pr oce dur e, t han a n executive order getting al ong wit h. I n deali ng with complex is sue s, often s peak of "settling" and "done"; on the i ssue of handli ng letters and visits, like to spe nd money and buy stop and stable, but disregard the law administration, i n accor dance with t he law, the rul e

3) P{0.3 ? X ? 0.7} ? F (0.7) ? F (0.3) ? 0.7 2 ? 0.32 ? 0.4 4) 函数 y ? 2 x ? 1 的反函数为 h( y ) ? 的

y ?1 1 ' , 其导数为 h ( y ) ? , 恒大于零, 故Y ? 2X ?1 2 2

? y ?1 1 y ?1 ? ? , ?1 ? y ? 1 ?2 ? 概率密度为 f Y ( y ) ? ? 2 2 2 ? 其它 ?0,
3、设随机变量 X 的概率密度为 f ( x) ? ?

?cx, 0 ? x ? 1 ,求: 其它 ? 0,

(1)常数 c 的值; (2) X 的分布函数 F ( x) ; (3) P{0.1 ? X ? 0.5} 。 解: (1)

? f ?x?dx ? 1 , ? cxdx ? c / 2 ? 1 , c ? 2
1

??

??

0

(2) F ( x) ?

?

x

??

? 0, ? ? x f ? x ?dx ? ? ? 2 xdx ? x 2 , 0 ? ? ? 1,
2 2

x?0 0 ? x ?1 x ?1

(3) P?0.1 ? x ? 0.5? ? ?0.5? ? ?0.1? ? 0.24 4、设随机变量 X 的概率密度为 f ( x) ? ? 解:方法一:定义法

?2 x , 0 ? x ? 1 ,求 Y=3X+1 的概率密度。 ?0, 其它
y ?1

y ?1 FY ( y ) ? P{Y ? y} ? P{3 X ? 1 ? y} ? P{ X ? } ? ? 3 f ( x)dx (1 ? y ? 4) ?? 3
f Y ( y ) ? FY' ( y ) ? f ( y ?1 y ?1 ' 1 y ?1 2 y ?1 )( ) ? f( )? ( ), (1 ? y ? 4 ) 3 3 3 3 3 3

?2 y ?1 ), 1 ? y ? 4 ? ( 故 f Y ( y) ? ? 3 3 ? 其它 ?0,
方法二:公式法
' 函 数 y ? 3x ? 1 在 (??, ?) 内 可 导 , 且 导 数 y ? 3 ? 0 , 其 反 函 数 h( y ) ?

y ?1 , 3

h ' ( y) ?

1 , ? ? min{1, 4} ? 1, ? ? max{1, 4} ? 4 ,则 Y=3X+1 的概率密度为 3

? y ? 1 1 2( y ? 1) ? ? ,1 ? y ? 4 ?2 f Y ( y) ? ? 3 3 9 ? 其它 ?0,
W A q C N z S G I X V F . k T x b w v g '" y ,f h c m ln o r e t u ip d s a 形 情 止 禁 律 作 以 可 民 公 织 组 他 其 、 法 力 能 偿 清 代 有 。 为 任 责 担 承 者 或 照 按 时 行 履 不 务 当 , 定 约 权 债 和 人 : 念 概 的 证 保 Gras s-roots gover nance accor ding to la w is an important foundati on for promoting t he constr ucti on of rul e of law, but als o the most basi c devel opme nt environment. D espite my good s ocial order i n Ge neral, but there are law -abi ding consci ousne ss, s ocia l order i s not sta ndar d, regardle ss of faith, Twining visit visit a nd other outstanding problems. We w ant to active ly promote t he field of multi -level gover nance accor ding to la w, pr omote the continuous improveme nt of the s ocial e nvironment. To pr omote universal complia nce . Actively foster the r ule of law culture , carry out law publi city a nd educati on on hone sty and tr ustwort hine ss, guide the masses a nd consci ously abi de by the law, faili ng to find method, problem -solvi ng method, method of gradually changi ng the worl d, he is not looki ng for but some one "uns poken r ules", formed all la w la w, a bide by the good atmosphere. To s trengthen t he comprehensive ma nagement of publ ic se curit y. Dee pe ning peace xi ngan constr ucti on, str ongly 3 " A f T . y p w g k u h n s d c a iv ,t m le b o r against viole nce crime, mafia and serious crimi nal offences, to protect t he legitimate rights and interest s of citize ns, legal persons, carry out criminal poli cy of temper justice wit h mercy, the maximum stimulating social vitality, a nd ear nestly safeguar d social harm ony and stabil ity. To res olve social confli cts by law. To further sm ooth cha nnels of reporting s ocial conditi ons a nd public opi nion, improvi ng regulati on, ar bitration, a s well as dispute res oluti on mechani sms, impleme nt fully the petitioners ' cas es "third -party" heari ngs and s upervi sing system of letters a nd cal ls, and to res olve the i nvolved law laws uit into t he or bit of rule of la w, vexatious, Twini ng visit visit, distur bing s ocial order a nd other malici ous extortion, resol utely cra ck down. F ive, improvi ng cadre s V itale, provi de strong prote ction for forest development XI Ge neral Secretary stre ssed t hat the compre hensive revitaliza tion in Northeast China, needs a hig h quality, s olid styl e, ca dres of the dare to pla y. Ca dre ca dres is a pledge, should want to do work and abl e to do good, ent husiasm is param ount . Treat party cadres , it is ne cess ary to Strict manageme nt, and warm care, e nable t he br oad mass es of ca dres work hard w ork, this i s two parall el principles. I n strict a ccordance wit h the sta ndar ds of good ca dres se lecti on a nd a ppoint ment, the real officers , dare officer s, those w ho wa nt to play, good as excell ent ca dres at all levels of leaders hip i n the pa st. At prese nt, some lea ding cadres w ork initiative i s not high, beyond political , idle , lazy governance governa nce, not as, sl ow, mes sy and a phenome non still exist to varyi ng de grees, affected and restricted economi c and social develo pment. We m ust mobilize the e nthusiasm of cadres a s an urge nt task, adhere to combi nation of incentives a nd constraints, a nd a dhere to the stri ct management a nd warm care, pra ctical s oluti on "for the officer s not to" pr oblem, motivate cadres and better lea d the masse s to an undertaking , the ca dres a nd create t he ne w achievement in a dare to play, good at s how s as new. To i dentify the probl em, accurate pulse of law to visit and contribute to make visits to t he vexatious v isits arroga nce . On t hese i ssue s, we need to have a pr oper understanding, shoul d take the lead to e stablis h a se nse of fear of the law, stre ngthen t he applicati on of the rule of law and the r ule of law work of thinki ng and take up res ponsi bility for the constructi on of the rule of law. Put lear ning first. Premise i s ignorant of the la w, abi de by t he law. Lea ding ca dres at all level s shoul d take the lea d in studying t he Constit ution a nd la ws and regulati ons closely related to w or k assumed by, a n accurate gras p of the ba sic positi on of our party to a ddre ss the i ssue of the rule of law, know n for the s cale to do thi ngs, figure out how to use it right, w hat thing s do, what not to do, it can never "legal literacy". To enhance the aw arenes s of the r ule of law. Firmly establis h the supremacy of constit utional law, l egal equality before the, right by the law makes the right to statutory, as well as t he rule of law, develop ha bits of rul e of law, to dis card the r ule and ca nnot, must not get overridden by aut hority, at the right pre ssure . Should take the lead to a bide by. Fulfil its mandate i n strict a ccorda nce wit h statutory a uthority and procedures, no matter what you want to a dhere t o the la w, thought of rule by law and the rul e of law to tackle hot is sue s, effective statutory duty must be, without a uthori zation, is not availabl e. Such as construction are as, s ome cadre s are be cause there i s no procedure is followed by the rule s, pai d a heavy price, w e shoul d learn from them, i n strict a ccordance with the law on bi ddi ng and im plementation .. . Promise d to g ive preferenti al pol icies for e nterpri ses, hesitant to cash or ca sh not at all. Mas ses feel strongly about the se iss ues, it i s ne cessary t o be s olved. To a ccel erate decentralizati on. S pecificati on li st list list of powers, res ponsi bilities a nd neg ative, cl earance, revocation does not ada pt to the current sit uation of the development of policy document s, espe cially the rig ht to admini strative examination a nd a pproval , the ca ncellation must be cancele d, the delegation must be de centralize d to achieve zer o-w ait, one-st op, seamless, im prove admi nistrative efficiency and servi ce levels. In parti cula r, the delegation of powers must be ca ught properly, never able t o loft is no answ er, no one care s, ca use backfire, people work harde r. To carry out the campaign. Crack dow n on law enfor cement regulati ons, uncivil a nd not as, a s undermini ng economic development, s uch as envir onme ntal problems, pay close attention to the gras s-r oots level w eaknesses, stri ctly investigate and dea l with the gras s-r oots level corr upti on and de nial of Justi ce agai nst the intere sts of the mass es, s uch as corruption a nd corr uption, rut hles s pe ople ar ound "flies", further optimization of the development envir onme nt. In particular, stre ngthe ning the construction of Governme nt credit, a nd trustwor thy practice for companie s and i nvestors , and must not break faith with t he people, pr omises a nd the promi se to the society. To buil d a new of law to visit and contribute to make visits to t he vexatious visits arroga nce . On t hese i ssue s, we need to have a pr oper understanding, shoul d take the lead to e stablis h a se nse of fear of the law, stre ngthen t he applicati on of the rule of law and the rule of law w ork of think ing and take up respons ibility for the construction of the rule of law. Put lear ning first. Pr emise is ignorant of the law, a bide by the law. Leadi ng cadre s at all levels s hould take the l ead in studyi ng the Constitution and laws a nd reg ulations cl osely relate d to w ork ass umed by, an a ccurate grasp of the basi c position of our party to address t he iss ue of the r ule of law, known for the scale t o do t hings , figure out how t o use it right , what thi ngs do, what not to do, it ca n never "legal literacy". To e nha nce t he aware ness of the rule of law. Firmly establish t he s upremacy of constituti onal la w, le gal e quality before the, right by the law makes the right to statut ory, as w ell as the rule of la w, devel op habits of rule of la w, to di scard t he rule a nd cannot, must not get overri dde n by a uthorit y, at the right press ure. Shoul d take the lea d to abi de by. Fulfil its mandate in stri ct accordance with stat utory aut hority and pr oce dures , no matter what y ou want t o adhere to the la w, thoug ht of rule by law a nd t he rule of law to tackle hot is sues , effective statutory duty must be , without aut horizati on, is not available . Such as constructi on area s, s ome cadre s are be cause there i s no procedure is follow ed by t he rule s, pai d a heavy pri ce, we shoul d learn from them, i n strict accor dance with the law on bi ddi ng and im plementati on .. . Promise d to give prefere ntial policie s for enterpri ses, hesitant to cas h or ca sh not at all. Mas ses feel strongly about the se iss ues, it i s ne cessary t o be s olved. To a cce lerate de centralizati on. S pecifi cation li st list list of powers, res ponsi bilities a nd negative, cleara nce , revoca ti on does not adapt to the curre nt situati on of the devel opme nt of poli cy documents, espe cially the rig ht to admini strative examination a nd a pproval , the ca ncellation must be cancele d, the delegation must be de centralize d to achieve zer o-w ait, one-st op, seamless, im prove admi nistrative efficiency and servi ce levels. In parti cula r, the delegation of powers must be ca ught properly, neve r able t o loft is no answ er, no one care s, ca use backfire, people work harde r. To carry out the campaign. Crack dow n on law enfor cement regulati ons, uncivil a nd not as, a s undermini ng economic development, s uch as envir onme ntal problems, pay close attentio n to the gras s-r oots level w eaknesses, stri ctly investigate and dea l with the gras s-r oots level corr upti on and de nial of Justi ce agai nst the intere sts of the mass es, s uch as corruption a nd corr uption, rut hles s pe ople ar ound "flies", further optimization of the development envir onme nt. In particular, stre ngthe ning the construction of Governme nt credit, a nd trustworthy practice for companie s and i nvestors , and must not break faith with t he people, pr omises a nd the promi se to the society. To buil d a new

j elationshi p betw een Governme nt and busine ss. T he "two se ssi ons", G eneral Se cretary of "Pro", "clear" the wor d succi nctly sum marized t he ne w relationshi p betw een G overnme nt and busine ss, as pure politi cs, res hapi ng the politi cal relationshi p s pecifie d in the directi on. District lea ders i n ha ndl ing politi cal and busi ness relati ons, engage i n trading power for money, a nd finally stumble d, we a le sson, alway s kee p in mind that "Pro", "cle an" practi cing "Pr o", "clear". "Pro" is to ope n a sincere e ngagement with private enterpri se to help s olve pra ctical difficulties ; " Clear "is to clarify the Divis ion of power, exercise d in a ccor dance wit h, private entre preneurs wit h innocent purity, not abusi ng power for pers onal gain, not to engage i n trading power for money. Thir d, in or der to maintai n fairnes s and j usti ce. Fairne ss and justice is t he lifeline of the rule of la w, is the best development envir onment. Curre nt ly, lax law e nforceme nt and t he judicia l sect or in our region als o exist to varying degrees, law z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r enforceme nt departme nts and individual window unit s power for pers onal gai ns and bri bes , thick frie nds, relati ons, human ca ses, money ca ses i n whi ch ser iously infringe on the legitimate rights and interests of enterpri ses and pe opl e. Es peci ally some law enforceme nt and ins pe ction for profi t purpose s, del iberately looking for cor porate loophole s, found dire ctly under t he ticket does not give business impr ovement opportunities. We recruit a compa ny doesn't ea sily, cultivati ng a busine ss more difficult, never for pers onal gain, systematic hara ssment, card, la st che cked to check to get the e nterprise colla pse d. To guarante e the legitimate rights a nd i nterests. Always proceed from the overall situati on of reform and devel opme nt of services, fully consider t he characteristi cs of pr oducti on a nd manageme nt in non-publi c enter prise s and social be nefits, a n accurate grasp of legal limits, pr otect the e nthusiasm of entre preneurs a nd practitioners i n innovation and entrepr ene urshi p, e nha nci ng expectations a nd confidence. To prom ote strict e nforcement . Strengthe ning law e nforceme nt procedures, im prove law e nforcement performance evaluati on, strengthe ning t he s upervi sion of law enforc ement, expl oration and practi ce of risk control mecha nism of law e nforceme nt to further sta ndardize the s ocial se curity, urba n manageme nt, road traffic admi nistrative law enfor cement, effectively free, extens ive law-e nforceme nt and lax enforceme nt of law enfor cement a nd ot her iss ues . To uphol d justi ce. Justi ce is t he last line of Defense t o safeguard fairness a nd j ustice , to unequivocally s upport the court s and procuratorates i nde pe nde ntly exercise level . .. Judicial a ctivities were rampa nt, must not be all owe d to run, favors, mone y, must not be a llowe d to knowingly vi olate the mis carriage, vi olations of the legitimate rights a nd i nterests of the mas ses must not be allowe d to a bus e of powe r, to make forest mass ca n be felt in every j udi cial ca ses i n equity and j usti ce. Four to dee pe n grass-r oots governance a ccording to la wchain do long, a nd put scale big. To s erve the development of enter prises . Duocuo s imultane ously improvi ng servi ce efficiency, buil d better publi c servi ces platform, enhance work efficie ncy, initiative to hel p busine sses solve the proj ect pr oce dures , financing l oans, iss ues such as la nd -use approval, re duce operating costs, busi nes s travel light and enhance the confi dence to ov ercome all ki nds of difficultie s and the Foundation, real entre prene urial pa ssion play e ntrepre neurs hip, enhance the i nternal vitality and creativit y. SI XING a n constr ucti on, promoting t he r ule of law, tries to make the tra nsformation of forest devel opment XI Ge neral Secretary stre sse d, to reinvig orate Northeast C hina, optimize d devel opme nt environment is very important. Envir onme nt of rule of law most gather Moss, the most conducive to devel opme nt. Impr oving the lea ding cadre s ' using t he method of thought a nd the rule of law A dministration work, problem -s olving, the a bility to pr omote the devel opment , is the key to pr omoting t he rule of law. The law may affect the efficiency of out of the path of devel opment w ill be more smoot h, won devel opme nt gains w ill be s ustai ned, a nd e nd wit h greater efficiency. Leadi ng ca dres at all levels should take the lead i n respect of law la w, abi de by, a nd a ctively foster Soci alist culture, a ctively prom oting the fiel d of multi-lev el governa nce accordi ng to la w, guide the mas ses and cons ciously a bide by the la w, failing to find law, solve t he problem by la w, in a ccorda nce w ith the law prevail. XXX admi nistration by law of leadi ng ca dres do not exist on the r ule of law, law enfor cement, casua l, and vow not to invest ors, the new s core s and other t urmoil. T hese im portant expositi ons on my distri ct create good development e nvironme nt with highly targeted and gui dance, e spe cially the General Se cretary pointed out that the chaos i n my area also exists to varyi ng degree s, s ome even quite seri ous. Lea ding cadres at all lev els must impr ove the development envir onme nt of rule of law as a fundame ntal task, a dhere to t he pr oblem ori ented, soli d and solv e the pr oblems i n the co nstruction of rule of la w, to rule t he ne w effect for development envir onme nt improvement s. To hol d "key minority". Lea ders of thi s group, althoug h few in number, but the effect is critical. If a local lea ders take the lea d right a ccor ding to la w, i n accorda nce with the law, the local CPPCC fresh, pragmati c and efficient devel opme nt environment. Conversely, if a local lea ders of ignoring t he law, impunity, not only the political environment will be de stroyed, will have seri ous implicati ons for the devel opme nt environment. Now, s ome leadi ng ca dres lack of awarenes s on the importance of learni ng, that lear n or not does not matter. Thi nk efficiency is too low too much, act a ccordi ng to the proce dur e, than a n executive order getting along with. I n deal ing with com plex iss ues, often speak of "settling" and "done"; on the iss ue of ha ndli ng letters and visits, l ike to spend money and buy stop a nd sta ble, but di sregard the la w admini stration, i n accordance with the law, t he rule cha in do long, and put scal e big. To serve t he deve lopme nt of enter prises . Duocuo sim ultane ously improving service efficiency, buil d better publi c servi ces platform , enha nce work efficie ncy, i nitiative to hel p busine sse s solve t he pr oject proce dure s, financing l oans, iss ues such as la nd -use approval, re duce operating costs, busi nes s travel light and enhance the confi dence to ov ercome all ki nds of difficultie s and the Foundati on, real entrepr ene urial pa ssion play e ntrepre neurs hip, enhance the interna l vitality and creativity. SI XING an construct i on, promoti ng the rule of law, trie s to make the transformati on of forest deve lopme nt XI General Secretary stress ed, to rei nvigorate Northeast Chi na, optimized development envir onme nt is very importa nt. Environment of rul e of law most gather Mos s, the most conducive t o devel opment . Improvi ng the lea ding ca dres ' using the method of thought a nd the rule of law A dministration work, problem-s olving , the a bility to pr omote the development, is t he key to prom oting the r ule of law. The law may affect the efficiency of out of the path of development will be more smooth, w on development gai ns will be s ustaine d, and end with greater efficie ncy. Leadi ng cadre s at all levels s hould take the lead i n respe ct of law law, abi de by, and actively foster Socialist cult ure, actively promoti ng the field of multi-level gover nance a ccording t o law, g uide t he masse s and cons ciously abi de by t he law, failing to find la w, s olve the problem by law, in accor da nce wit h the law prevail. XXX admini stration by law of leadi ng ca dres do not exist on the rule of la w, law enfor cement, cas ual, and vow not to inve stors, the new score s and other turmoil. T hes e importa nt expos itions on my district create g ood devel opment e nvironment with highly targeted a nd g uida nce, e spe cially the General Secreta ry pointe d out t hat the chaos in my area also exi sts to varying degrees, some even quite s erious. Leadi ng cadre s at all levels must improve the devel opment e nvironme nt of rule of law as a fundamental task, a dher e to the probl em oriente d, solid a nd s olve the probl ems in the construction of rule of law, to rule the new effect for devel opment e nvironment improveme nts. To hol d "key mi nority". Lea ders of thi s group, althoug h few in number, but t he effect is critical. If a local leader s take the lead rig ht accordi ng to law, in accor dance wit h the la w, the l ocal CPPCC fresh, pragmatic and efficient development e nvironme nt. Conversel y, if a local leader s of ignori ng the law, impunity, not only the politi cal envir onme nt will be destroye d, will have seri ous im plicati ons for the devel opme nt environment. Now, some lea ding cadre s lack of aware ness on t he importa nce of learni ng, that lear n or n ot doe s not matter. Think efficie ncy i s too l ow too much, act a ccording t o the pr oce dure, t han a n executive order getting al ong wit h. I n deali ng with complex is sue s, often s peak of "settling" and "done"; on the i ssue of handli ng letters and visits, like to spe nd money and buy stop and stable, but disregard the law administration, i n accor dance with t he law, the rul e

综合训练
一、选择题
1、设随机变量 X 的概率密度为 ? ( x) ,且 ? ( x) = ? (? x) , F ( x) 是 x 的分布函数,则对任 意实数 a ,有( B ) 。 A) F ( ?a ) ? 1 ?

?

a

0

? ( x)dx

B) F (? a ) ?

a 1 ? ? ? ( x)dx 2 0

C) F ( ? a ) ? F ( a )

D) F (?a) ? 2F (a) ? 1 ) 。

2、设 X ~ N (1,1) ,概率密度为 ? ( x) ,则( C A) P( X ? 0) ? P( X ? 0) ? 0.5 C) P( X ? 1) ? P( X ? 1) ? 0.5

B) ? ( x) ? ? (? x), x ? (??,??) D) F ( x) ? 1 ? F (? x), x ? (??,??)

3 设随机变量 X 服从指数分布,则对随机变量 Y ? min{X ,2} 的分布函数,下列那一个结论 正确( D ) 。 A) 是连续函数 C) 是阶梯函数

B) 至少有两个间断点 D) 恰好有一个间断点

4 、设随机变量 X 服从正态分布 N (? , ? 2 ) ,则随 ? 的增大,概率 P{| X ? ? |? ? } 应 ( C ) 。 A)单调增大

B)单调减少

C)保持不变

D)增减不定

k k 5 、设 X 服从二项分布,其分布律为 P{X ? k} ? Cn p (1 ? p) n?k , (k ? 0,1,......, n) ,若

(n ? 1) p 不是整数,则 k 取何值时 P{ X ? k} 最大?( D
A) k ? (n ? 1) p B) k ? (n ? 1) p ? i C) k ? np

) 。

D) k ? [(n ? 1) p]

二、填空题
1、设某批电子元件的正品率为 4/5,次品率为 1/5,现对这批元件进行测试,只要测得一个
k ?1 4 正品就停止测试工作,则测试次数的分布律为 P{X ? k} ? ( 1 ( 5 ), (k ? 1, 2,......) 。 5)

2 2 、 设 某 批 电 子 元 件 的 寿 命 X 服 从 正 态 分 布 N (? , ? ) , 若 ? ? 1 6 0 ,且

P{120 ? X ? 200 } ? 0.8 ,则 ? 为

31.35


2

3、设随机变量 X 只取正整数值 N ,且 P{ X ? N } 与 N 成反比,则 X 的分布律为

P{ X ? N } ?

6 , N 取正整数。 ? N2
2

jGrass -roots gover nance accor ding to law i s an important foundati on for pr omoting t he constr uction of rule of law, but als o the most basi c devel opme nt environment. De spite my good s ocial order i n General, but there are law -abi ding consci ousne ss, s ocial order is not sta ndar d, regardle ss of faith, Twining visit visit a nd other outstanding problems. We w ant to active ly promote t he field of multi -level gover nance accor ding to la w, pr omote the continuous improveme nt of the s ocial e nvironment. To pr omote universal complia nce . Actively foster the r ule of law culture , carry out law publi city a nd educati on on hone sty and tr ustwort hine ss, guide the masses a nd consci ously abi de by the law, faili ng to find method, problem -solvi ng method, method of gradually changi ng the worl d, he is not looki ng for but some one "uns poken r ules", formed all la w law, a bide by the good atmosphere. To s trengthen t he comprehensive ma nagement of publ ic se curit y. Dee pe ning peace xi ngan constr ucti on, str ongly z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r 形 情 止 禁 律 作 以 可 民 公 织 组 他 其 、 法 力 能 偿 清 代 有 。 为 任 责 担 承 者 或 照 按 时 行 履 不 务 当 , 定 约 权 债 和 人 : 念 概 的 证 保 against viole nce crime, mafia and serious crimi nal offences, to protect t he legitimate rights and interest s of citize ns, legal persons, carry out criminal poli cy of temper justice wit h mercy, the maximum stimulating social vitality, a nd ear nestly safeguar d social harm ony and stability. To res olve social confli cts by law. To further sm ooth cha nnels of reporting s ocial conditi ons a nd public opi nion, improvi ng regulati on, ar bitration, a s well as dispute res oluti on mechani sms, impleme nt fully the petitioners ' cas es "third-party" heari ngs and s upervi sing system of letters a nd cal ls, and to res olve the i nvolved law laws uit into t he or bit of rule of la w, vexatious, Twini ng visit visit, distur bing s ocial order a nd other malici ous extortion, resol utely cra ck down. F ive, improvi ng cadre s V itale, provi de strong prote ction for forest development XI Ge neral Secretary stre ssed t hat the compre hensiv e revitaliza tion in Northeast China, needs a hig h quality, s olid styl e, ca dres of the dare to pla y. Ca dre ca dres is a pledge, should want to do work and abl e to do good, ent husiasm is param ount . Treat party cadres , it is ne cess ary to Strict manageme nt, and warm care, e nable t he br oad mass es of ca dres work hard w ork, this i s two parall el principles. I n strict a ccordance wit h the st a ndar ds of good ca dres se lecti on a nd a ppoint ment, the real officers , dare officer s, those w ho wa nt to play, good as excell ent ca dres at all levels of leaders hip i n the pa st. At prese nt, some lea ding cadres w ork initiative i s not high, beyond political , idle , lazy governance governa nce, not as, sl ow, mes sy and a phenome non still exist to varyi ng de grees, affected and restricted economi c and social development. We m ust mobilize the e nthusiasm of cadres a s an urge nt task, adhere to combi nation of incentives a nd constraints, a nd a dhere to the stri ct management a nd warm care, pra ctical s oluti on "for the officer s not to" pr oblem, motivate cadres and better lea d the masse s to an undertaking , the ca dres a nd create t he ne w achievement in a dare to play, good at s how s as new. To i dentify the probl em, accurate pulse of law to visit and contribute to make visits to t he vexatious visits arroga nce . On t hese i ssue s, we need to have a pr oper understanding, shoul d take the lead to e stablis h a se nse of fear of the law, stre ng then t he applicati on of the rule of law and the r ule of law work of thinki ng and take up res ponsi bility for the constructi on of the rule of law. Put learning first. Premise i s ignorant of the la w, abi de by t he law. Lea ding ca dres at all level s shoul d take t he lea d in studying t he Constit ution a nd la ws and regulati ons closely related to w or k assumed by, a n accurate gras p of the ba sic positi on of our party to a ddre ss the i ssue of the rule of law, know n for the s cale to do thi ngs, figure out how to use it right, w hat thing s do, what not to do, it can never "legal literacy". To enhance the aw arenes s of the r ule of law. Firmly establis h the supremacy of constit utional law, l egal equality before the, right by the law makes the right to statutory, as well as t he rule of law, develop ha bits of rul e of law, to dis card the r ule and ca nnot, must not get overridden by aut hority, at the right pre ssure . Should take the lead to a bide by. Fulfil its mandate i n strict a ccorda nce wit h statutory a uthority and procedures, no mat ter what you want to a dhere t o the la w, thought of rule by law and the rul e of law to tackle hot is sue s, effective statutory duty m ust be, without a uthori zation, is not availabl e. Such as construction are as, s ome cadre s are be cause there i s no procedure is followed by the rule s, pai d a heavy price, w e shoul d learn from them, i n strict a ccordance with the law on bi ddi ng and im plementat ion .. . Promise d to give preferenti al pol icies for e nterpri ses, hesitant to cash or ca sh not at all. Mas ses feel strongly about the se iss ues, it i s ne cessary t o be s olved. To a ccel erate decentralizati on. S pecificati on li st list list of powers, res ponsi bili ties a nd neg ative, clearance, revocation does not ada pt to the current sit uation of the development of policy document s, espe cially the rig ht to admini strative examination a nd a pproval , the ca ncellation must be cancele d, the delegation must be de centralize d to achieve zer o-w ait, one-st op, seamless, im prove admi nistrative efficiency and servi ce levels. In parti cula r, the delegation of powers must be ca ught properly, never able t o loft is no answ er, no one care s, ca use backfire, people work harde r. To carry o ut the campaign. Crack dow n on law enfor cement regulati ons, uncivil a nd not as, a s undermini ng economic development, s uch as envir onme ntal problems, pay close attention to the gras s-r oots level w eaknesses, stri ctly investigate and dea l with the gras s-r oots level corr upti on and de nial of Justi ce agai nst the intere sts of the mass es, s uch as corruption a nd corr uption, rut hles s pe ople ar ound "flies", further optimization of the development envir onme nt. In particular, stre ngthe ning the construction of Governme nt credit, a nd trustworthy practice for companie s and i nvestors , and must not break faith with t he people, pr omises a nd the promi se to the society. To buil d a new of law to visit and contribute to make visits to t he vexatious visits arroga nce . On t hese i ssue s, we need to have a pr oper understanding, shoul d take the lead to e stablis h a se nse of fear of the law, stre ngthen t he applicati on of the rule of law and the rule of law w ork of think ing and take up respons ibility for the construction of the rule of law. Put lear ning first. Pr emise is ignorant of the law, a bide by the law. Leadi ng cadre s at all levels s hould take the l ead in studyi ng the Constitution and laws a nd reg ulations cl osely relate d to w ork ass umed by, an a ccurate grasp of the basi c position of our party to address t he iss ue of the r ule of law, known for the scale t o do t hings , figure out how t o use it right , what thi ngs do, what not to do, it ca n never "legal literacy". To e nha nce t he aware ness of the rule of law. Firmly establish t he s upremacy of constituti onal la w, legal e quality before the, right by the law makes the right to statut ory, as w ell as the rule of la w, devel op habits of rule of la w, to di scard t he rule a nd cannot, must not get overri dde n by a uthorit y, at the right press ure. Shoul d take the lea d to abi de by. Fulfil its mandate in stri ct accordance with stat utory aut hority and pr oce dures , no matter what y ou want t o adhere to the la w, thoug ht of rule by law a nd t he rule of law to tackle hot is sues , effective statutory duty must be , without aut horizati on, is not available . Such as constructi on area s, s ome cadre s are be cause there i s no procedure is follow ed by t he rule s, pai d a heavy pri ce, we shoul d learn from them, i n strict accor dance with the law on bi ddi ng and im plementati on .. . Promise d to give prefere ntial policie s for enterpri ses, hesitant to cas h or ca sh not at all. Mas ses feel strongly about the se iss ues, it i s ne cessary t o be s olved. To a cce lerate de centralizati on. S pecifi cation li st list list of powers, res ponsi bilities a nd negati ve, cleara nce , revocati on does not adapt to the curre nt situati on of the devel opme nt of poli cy documents, espe cially the rig ht to admini strative examination a nd a pproval , the ca ncellation must be cancele d, the delegation must be de centralize d to achieve zer o-w ait, one-st op, seamless, im prove admi nistrative efficiency and servi ce levels. In parti cula r, the delegation of powers must be ca ught properly, never able t o loft is no answ er, no one care s, ca use backfire, people work harde r. To carry out the campaign. Crack dow n on law enfor cement regulati ons, uncivil a nd not as, a s undermini ng economic development, s uch as envir onme ntal problems, pay close attention to the gras s-r oots level w eaknesses, stri ctly investigate and dea l with the gras s-r oots level corr upti on and de nial of Justi ce agai nst the intere sts of the mass es, s uch as corruption a nd corr uption, rut hles s pe ople ar ound "flies", further optimization of the development envir onme nt. In particular, stre ngthe ning the construction of Governme nt credit, a nd tr ustworthy practice for companie s and i nvestors , and must not break faith with t he people, pr omises a nd the promi se to the society. To buil d a new

j elationshi p betw een Governme nt and busine ss. T he "two se ssi ons", G eneral Se cretary of "Pro", "clear" the wor d succi nctly sum marized t he ne w relationshi p betw een G overnme nt and busine ss, as pure politi cs, res hapi ng the politi cal relationshi p s pecifie d in the directi on. District lea ders i n ha ndl ing politi cal and busi ness relati ons, engage i n trading power for money, a nd finally stumble d, we a le sson, always kee p in mind that "Pro", "cle an" practi cing "Pr o", "clear". "Pro" is to ope n a sincer e e ngagement with private enterpri se to help s olve pra ctical difficulties ; " Clear "is to clarify the Divis ion of power, exercise d in a ccor dance wit h, private entre preneurs wit h innocent purity, not abusi ng power for pers onal gain, not to engage i n trading power for money. Thir d, in or der to maintai n fairnes s and j usti ce. Fairne ss and justice is t he lifeline of the rule of la w, is the best development envir onment. Curre ntly, lax law e nforceme nt and t he judicia l sect or in our region als o exist to varying degrees, law z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r enforceme nt departme nts and individual window unit s power for pers onal gai ns and bri bes , thick frie nds, relati ons, human ca ses, money ca ses i n whi ch ser iously infringe on the legitimate rights and interests of enterpri ses and pe opl e. Es peci ally some law enforceme nt and ins pe ction for profit purpose s, del iberately looking for cor porate loophole s, found dire ctly under t he ticket does not give business impr ovement opportunities. We recruit a compa ny doesn't ea sily, cultivati ng a busine ss more difficult, never for pers onal gain, systematic harassment, card, la st che cked to check to get the e nterprise colla pse d. To guarante e the legitimate rights a nd i nterests. Always proceed from the overall situati on of reform and devel opme nt of services, fully consider t he characteristi cs of pr oducti on a nd manageme nt in non -publi c enter prise s and social be nefits, a n accurate grasp of legal limits, pr otect the e nthusiasm of entre preneurs a nd practi tioners i n innovation and entrepr ene urshi p, e nha nci ng expectations a nd confidence. To prom ote strict e nforcement . Strengthe ning law e nforceme nt procedures, im prove law e nforcement performance evaluati on, strengthe ning t he s upervi sion of law enforcement, expl oration and practi ce of risk control mecha nism of law e nforceme nt to further sta ndardize the s ocial se curity, urba n manageme nt, road traffic admi nistrative law enfor cement, effectively free, extens ive law-e nforceme nt and lax enforceme nt of law enfor cement a nd ot her iss ues . To uphol d justi ce. Justi ce is t he last line of Defense t o safeguard fairness a nd j ustice , to unequivocally s upport the court s and procuratorates i nde pe nde ntly exercise level . .. Judicial a ctivities were rampa nt, must not be all owe d to run, favors, mone y, must not be a llowe d to knowingly vi olate the mis carriage, vi olations of the legitimate rights a nd i nterests of the mas ses must not be allowe d to a bus e of powe r, to make forest mass ca n be felt in every j udi cial ca ses i n equity and j usti ce. Four to dee pe n grass-r oots governance a ccording to la wchain do long, a nd put scale big. To s erve the development of enter prises . Duocuo s imultane ously improvi ng servi ce efficiency, buil d better publi c servi ces platform, enhance work efficie ncy, initiative to hel p busine sses solve the proj ect pr oce dures , financing l oans, iss u es such as la nd-use approval, re duce operating costs, busi nes s travel light and enhance the confi dence to ov ercome all ki nds of difficultie s and the Foundation, real entre prene urial pa ssion play e ntrepre neurs hip, enhance the i nternal vitality and creativit y. SI XING a n constr ucti on, promoting t he rule of law, tries to make the tra nsformation of forest devel opment XI Ge neral Secretary stre sse d, to reinvig orate Northeast China, optimize d devel opme nt environment is very important. Envir onme nt of rule of law mo st gather Moss, the most conducive to devel opme nt. Impr oving the lea ding cadre s ' using t he method of thought a nd the rule of law A dministration work, problem-s olving, the a bility to pr omote the devel opment , is the key to pr omoting t he rule of law. The law may affect the efficiency of out of the path of devel opment w ill be more smoot h, won devel opme nt gains w ill be s ustai ned, a nd e nd wit h greater efficiency. Leadi ng ca dres at all levels should take the lead i n respect of law la w, abi de by, a nd a ctively fost er Soci alist culture, a ctively prom oting the fiel d of multi-lev el governa nce accordi ng to la w, guide the mas ses and cons ciously a bide by the la w, failing to find law, solve t he problem by la w, in a ccorda nce w ith the law prevail. XXX admi nistration by law of leadi ng ca dres do not exist on the r ule of law, law enfor cement, casua l, and vow not to invest ors, the new s core s and other t urm oil. T hese im portant expositi ons on my distri ct create good development e nvironme nt with highly targeted and gui dance, e spe cially the General Se cretary pointed out that the chaos i n my area also exists to varyi ng degree s, s ome even quite seri ous. Lea ding cadres at all lev els must impr ove the development envir onme nt of rule of law as a fundame ntal task, a dhere to t he pr oblem ori ented, soli d and solv e the pr oblems i n the construction of rule of la w, to rule t he ne w effect for development envir onme nt improvement s. To hol d "key minority". Lea ders of thi s group, althoug h few in number, but the effect is critical. If a local lea ders ta ke the lea d right a ccor ding to la w, i n accorda nce with the law, the local CPPCC fresh, pragmati c and efficient devel opme nt environment. Conversely, if a local lea ders of ignoring t he law, impunity, not only the political environment will be de stroyed, will have seri ous implicati ons for the devel opme nt environment. Now, s ome leadi ng ca dres lack of awarenes s on the importance of learni ng, that lear n or not does not matter. Thi nk efficiency is too low too much, act a ccordi ng to the proce dur e, than a n executive order getting along with. I n deal ing with com plex iss ues, often speak of "settling" and "done"; on the iss ue of ha ndli ng letters an d visits, l ike to spend money and buy stop a nd sta ble, but di sregard the la w admini stration, i n accordance with the law, t he rule cha in do long, and put scal e big. To serve t he deve lopme nt of enter prises . Duocuo sim ultane ously improving service efficiency, buil d better publi c servi ces platform, enha nce work efficie ncy, i nitiative to hel p busine sse s solve t he pr oject proce dure s, f inancing l oans, iss ues such as la nd -use approval, re duce operating costs, busi nes s travel light and enhance the confi dence to ov ercome all ki nds of difficultie s and the Foundati on, real entrepr ene urial pa ssion play e ntrepre neurs hip, enhance the interna l vitalit y and creativity. SI XING an constructi on, promoti ng the rule of law, trie s to make the transformati on of forest deve lopme nt XI General Secretary stress ed, to rei nvigorate Northeast Chi na, optimized development envir onme nt is very importa nt. Environm ent of rul e of law most gather Mos s, the most conducive t o devel opment . Improvi ng the lea ding ca dres ' using the method of thought a nd the rule of law A dministration work, problem-s olving , the a bility to pr omote the development, is t he key to prom oting the r ule of law. The law may affect the efficiency of out of the path of development will be more smooth, w on development gai ns will be s ustaine d, and end with greater efficie ncy. Leadi ng cadre s at all levels s hould take the lead i n respe ct of law law, abi de by, and actively foster Socialist cult ure, actively promoti ng the field of multi-level gover nance a ccording t o law, g uide t he masse s and cons ciously abi de by t he law, failing to find la w, s olve the problem by law, in accor da nce wit h the law prevail. XXX admini stration by law of leadi ng ca dres do not exist on the rule of la w, law enfor cement, cas ual, and vow not to inve stors, the new score s and other turmoil. T hes e importa nt expos itions on my district create g ood devel opment e nvironment with highly targeted a nd g uida nce, e spe cially the General Secretary pointe d out t hat the chaos in my area also exi sts to varying degrees, some even quite s erious. Leadi ng cadre s at all levels must improve the devel opment e nvironme nt of rule of law as a fundamental task, a dher e to the probl em oriente d, solid a nd s olve the probl ems in the construction of rule of law, to rule the new effect for devel opment e nvironment improveme nts. To hol d "key minority". Lea ders of thi s group, althoug h few in number, but t he effect is critical. If a local leader s take the lead rig ht accordi ng to law, in accor dance wit h the la w, the l ocal CPPCC fresh, pragmatic and efficient development e nvironme nt. Conversel y, if a local leader s of ignori ng the law, impunity, not only the politi cal envir onme nt wil l be destroye d, will have seri ous im plicati ons for the devel opme nt environment. Now, some lea ding cadre s lack of aware ness on t he importa nce of learni ng, that lear n or not doe s not matter. Think efficie ncy i s too l ow too much, act a ccording t o the pr oce dur e, t han a n executive order getting al ong wit h. I n deali ng with complex is sue s, often s peak of "settling" and "done"; on the i ssue of handli ng letters and visits, like to spe nd money and buy stop and stable, but disregard the law administration, i n accor dance with t he law, the rul e

4 、 设 随 机 变 量 X 的 分 布 函 数 为 F ( x) , 则 随 机 变 量 Y ? 2 X ? 1 的 分 布 函 数 为

1 1 G( y) ? F ( y ? ) 。 2 2
5、设随机变量 X 服从(0,2)上的均匀分布则随机变量 Y ? X 在(0,4)内的概率密度
2

为 f Y ( y) ?

1 4 y

,0 ? y ? 4 。

三、判断题
1、 分布函数之和仍为分布函数。 2、 概率分布就是分布函数。 3、 连续型随机变量的函数一定是连续性随机变量。 4、 随机变量与随机函数是两个不同的概念。 ( ( ( ( ╳ ╳ ╳ √ ) ) ) )

四、解答题
1、设随机变量 X 的概率密度为 f ( x) ? ?

?3x 2 , 0 ? x ? 1 ?0, 其它

, 以 Y 表示对 X 的三次独立重

复观察中事件 { X ? 1 / 2} 出现的次数,求: (1)事件 { X ? 1 / 2} 至少出现一次的概率; (2)事件 { X ? 1 / 2} 恰好出现两次的概率。 解:随机变量 Y 服从参数为 3, p 的二项分布,而 p ? P{ X ? 1 / 2} ? (1)事件 { X ? 1 / 2} 至少出现一次的概率为

?

1 2

0

3 x 2 dx ?

1 ,则: 8

1 169 P{Y ? 1} ? 1 ? P{Y ? 0} ? 1 ? (1 ? ) 3 ? 8 512
(2)事件 { X ? 1 / 2} 恰好出现两次的概率为 P{Y ? 2} ? C 3 ( ) (1 ? ) ?
2 2 1

1 8

1 8

21 512

2、设随机变量 X 的概率密度为 f X ( x) ? ?

? A cos x, | x |? ? / 2 其它 ?0,
X ? ? 的概率密度。 2 4
A= 1/2 ;

求: (1)常数 A; (2)X 的分布函数; (3) P{| sin x |? 1 / 2} ; (4)Y ? 解 : ( 1 ) 由

1 ? ? 2? A c
?2

?

x o ? ds2 Ax





x ? ?? / 2 ?0, ? (2) F ( x) ? ?(sin x ? 1) / 2, ? ? / 2 ? x ? ? / 2 ?1, x ?? /2 ?
W A q C N z S G I X V F . k T x b w v g '" y ,f h c m ln o r e t u ip d s a 形 情 止 禁 律 作 以 可 民 公 织 组 他 其 、 法 力 能 偿 清 代 有 。 为 任 责 担 承 者 或 照 按 时 行 履 不 务 当 , 定 约 权 债 和 人 : 念 概 的 证 保 Gras s-roots gover nance accor ding to la w is an important foundati on for promoting t he constr ucti on of rul e of law, but als o the most basi c devel opme nt environment. D espite my good s ocial order i n Ge neral, but there are law -abi ding consci ousne ss, s ocia l order i s not sta ndar d, regardle ss of faith, Twining visit visit a nd other outstanding problems. We w ant to active ly promote t he field of multi -level gover nance accor ding to la w, pr omote the continuous improveme nt of the s ocial e nvironment. To pr omote universal complia nce . Actively foster the r ule of law culture , carry out law publi city a nd educati on on hone sty and tr ustwort hine ss, guide the masses a nd consci ously abi de by the law, faili ng to find method, problem -solvi ng method, method of gradually changi ng the worl d, he is not looki ng for but some one "uns poken r ules", formed all la w la w, a bide by the good atmosphere. To s trengthen t he comprehensive ma nagement of publ ic se curit y. Dee pe ning peace xi ngan constr ucti on, str ongly 3 " A f T . y p w g k u h n s d c a iv ,t m le b o r against viole nce crime, mafia and serious crimi nal offences, to protect t he legitimate rights and interest s of citize ns, legal persons, carry out criminal poli cy of temper justice wit h mercy, the maximum stimulating social vitality, a nd ear nestly safeguar d social harm ony and stabil ity. To res olve social confli cts by law. To further sm ooth cha nnels of reporting s ocial conditi ons a nd public opi nion, improvi ng regulati on, ar bitration, a s well as dispute res oluti on mechani sms, impleme nt fully the petitioners ' cas es "third -party" heari ngs and s upervi sing system of letters a nd cal ls, and to res olve the i nvolved law laws uit into t he or bit of rule of la w, vexatious, Twini ng visit visit, distur bing s ocial order a nd other malici ous extortion, resol utely cra ck down. F ive, improvi ng cadre s V itale, provi de strong prote ction for forest development XI Ge neral Secretary stre ssed t hat the compre hensive revitaliza tion in Northeast China, needs a hig h quality, s olid styl e, ca dres of the dare to pla y. Ca dre ca dres is a pledge, should want to do work and abl e to do good, ent husiasm is param ount . Treat party cadres , it is ne cess ary to Strict manageme nt, and warm care, e nable t he br oad mass es of ca dres work hard w ork, this i s two parall el principles. I n strict a ccordance wit h the sta ndar ds of good ca dres se lecti on a nd a ppoint ment, the real officers , dare officer s, those w ho wa nt to play, good as excell ent ca dres at all levels of leaders hip i n the pa st. At prese nt, some lea ding cadres w ork initiative i s not high, beyond political , idle , lazy governance governa nce, not as, sl ow, mes sy and a phenome non still exist to varyi ng de grees, affected and restricted economi c and social develo pment. We m ust mobilize the e nthusiasm of cadres a s an urge nt task, adhere to combi nation of incentives a nd constraints, a nd a dhere to the stri ct management a nd warm care, pra ctical s oluti on "for the officer s not to" pr oblem, motivate cadres and better lea d the masse s to an undertaking , the ca dres a nd create t he ne w achievement in a dare to play, good at s how s as new. To i dentify the probl em, accurate pulse of law to visit and contribute to make visits to t he vexatious v isits arroga nce . On t hese i ssue s, we need to have a pr oper understanding, shoul d take the lead to e stablis h a se nse of fear of the law, stre ngthen t he applicati on of the rule of law and the r ule of law work of thinki ng and take up res ponsi bility for the constructi on of the rule of law. Put lear ning first. Premise i s ignorant of the la w, abi de by t he law. Lea ding ca dres at all level s shoul d take the lea d in studying t he Constit ution a nd la ws and regulati ons closely related to w or k assumed by, a n accurate gras p of the ba sic positi on of our party to a ddre ss the i ssue of the rule of law, know n for the s cale to do thi ngs, figure out how to use it right, w hat thing s do, what not to do, it can never "legal literacy". To enhance the aw arenes s of the r ule of law. Firmly establis h the supremacy of constit utional law, l egal equality before the, right by the law makes the right to statutory, as well as t he rule of law, develop ha bits of rul e of law, to dis card the r ule and ca nnot, must not get overridden by aut hority, at the right pre ssure . Should take the lead to a bide by. Fulfil its mandate i n strict a ccorda nce wit h statutory a uthority and procedures, no matter what you want to a dhere t o the la w, thought of rule by law and the rul e of law to tackle hot is sue s, effective statutory duty must be, without a uthori zation, is not availabl e. Such as construction are as, s ome cadre s are be cause there i s no procedure is followed by the rule s, pai d a heavy price, w e shoul d learn from them, i n strict a ccordance with the law on bi ddi ng and im plementation .. . Promise d to g ive preferenti al pol icies for e nterpri ses, hesitant to cash or ca sh not at all. Mas ses feel strongly about the se iss ues, it i s ne cessary t o be s olved. To a ccel erate decentralizati on. S pecificati on li st list list of powers, res ponsi bilities a nd neg ative, cl earance, revocation does not ada pt to the current sit uation of the development of policy document s, espe cially the rig ht to admini strative examination a nd a pproval , the ca ncellation must be cancele d, the delegation must be de centralize d to achieve zer o-w ait, one-st op, seamless, im prove admi nistrative efficiency and servi ce levels. In parti cula r, the delegation of powers must be ca ught properly, never able t o loft is no answ er, no one care s, ca use backfire, people work harde r. To carry out the campaign. Crack dow n on law enfor cement regulati ons, uncivil a nd not as, a s undermini ng economic development, s uch as envir onme ntal problems, pay close attention to the gras s-r oots level w eaknesses, stri ctly investigate and dea l with the gras s-r oots level corr upti on and de nial of Justi ce agai nst the intere sts of the mass es, s uch as corruption a nd corr uption, rut hles s pe ople ar ound "flies", further optimization of the development envir onme nt. In particular, stre ngthe ning the construction of Governme nt credit, a nd trustwor thy practice for companie s and i nvestors , and must not break faith with t he people, pr omises a nd the promi se to the society. To buil d a new of law to visit and contribute to make visits to t he vexatious visits arroga nce . On t hese i ssue s, we need to have a pr oper understanding, shoul d take the lead to e stablis h a se nse of fear of the law, stre ngthen t he applicati on of the rule of law and the rule of law w ork of think ing and take up respons ibility for the construction of the rule of law. Put lear ning first. Pr emise is ignorant of the law, a bide by the law. Leadi ng cadre s at all levels s hould take the l ead in studyi ng the Constitution and laws a nd reg ulations cl osely relate d to w ork ass umed by, an a ccurate grasp of the basi c position of our party to address t he iss ue of the r ule of law, known for the scale t o do t hings , figure out how t o use it right , what thi ngs do, what not to do, it ca n never "legal literacy". To e nha nce t he aware ness of the rule of law. Firmly establish t he s upremacy of constituti onal la w, le gal e quality before the, right by the law makes the right to statut ory, as w ell as the rule of la w, devel op habits of rule of la w, to di scard t he rule a nd cannot, must not get overri dde n by a uthorit y, at the right press ure. Shoul d take the lea d to abi de by. Fulfil its mandate in stri ct accordance with stat utory aut hority and pr oce dures , no matter what y ou want t o adhere to the la w, thoug ht of rule by law a nd t he rule of law to tackle hot is sues , effective statutory duty must be , without aut horizati on, is not available . Such as constructi on area s, s ome cadre s are be cause there i s no procedure is follow ed by t he rule s, pai d a heavy pri ce, we shoul d learn from them, i n strict accor dance with the law on bi ddi ng and im plementati on .. . Promise d to give prefere ntial policie s for enterpri ses, hesitant to cas h or ca sh not at all. Mas ses feel strongly about the se iss ues, it i s ne cessary t o be s olved. To a cce lerate de centralizati on. S pecifi cation li st list list of powers, res ponsi bilities a nd negative, cleara nce , revoca ti on does not adapt to the curre nt situati on of the devel opme nt of poli cy documents, espe cially the rig ht to admini strative examination a nd a pproval , the ca ncellation must be cancele d, the delegation must be de centralize d to achieve zer o-w ait, one-st op, seamless, im prove admi nistrative efficiency and servi ce levels. In parti cula r, the delegation of powers must be ca ught properly, neve r able t o loft is no answ er, no one care s, ca use backfire, people work harde r. To carry out the campaign. Crack dow n on law enfor cement regulati ons, uncivil a nd not as, a s undermini ng economic development, s uch as envir onme ntal problems, pay close attentio n to the gras s-r oots level w eaknesses, stri ctly investigate and dea l with the gras s-r oots level corr upti on and de nial of Justi ce agai nst the intere sts of the mass es, s uch as corruption a nd corr uption, rut hles s pe ople ar ound "flies", further optimization of the development envir onme nt. In particular, stre ngthe ning the construction of Governme nt credit, a nd trustworthy practice for companie s and i nvestors , and must not break faith with t he people, pr omises a nd the promi se to the society. To buil d a new

j elationshi p betw een Governme nt and busine ss. T he "two se ssi ons", G eneral Se cretary of "Pro", "clear" the wor d succi nctly sum marized t he ne w relationshi p betw een G overnme nt and busine ss, as pure politi cs, res hapi ng the politi cal relationshi p s pecifie d in the directi on. District lea ders i n ha ndl ing politi cal and busi ness relati ons, engage i n trading power for money, a nd finally stumble d, we a le sson, alway s kee p in mind that "Pro", "cle an" practi cing "Pr o", "clear". "Pro" is to ope n a sincere e ngagement with private enterpri se to help s olve pra ctical difficulties ; " Clear "is to clarify the Divis ion of power, exercise d in a ccor dance wit h, private entre preneurs wit h innocent purity, not abusi ng power for pers onal gain, not to engage i n trading power for money. Thir d, in or der to maintai n fairnes s and j usti ce. Fairne ss and justice is t he lifeline of the rule of la w, is the best development envir onment. Curre nt ly, lax law e nforceme nt and t he judicia l sect or in our region als o exist to varying degrees, law z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r enforceme nt departme nts and individual window unit s power for pers onal gai ns and bri bes , thick frie nds, relati ons, human ca ses, money ca ses i n whi ch ser iously infringe on the legitimate rights and interests of enterpri ses and pe opl e. Es peci ally some law enforceme nt and ins pe ction for profi t purpose s, del iberately looking for cor porate loophole s, found dire ctly under t he ticket does not give business impr ovement opportunities. We recruit a compa ny doesn't ea sily, cultivati ng a busine ss more difficult, never for pers onal gain, systematic hara ssment, card, la st che cked to check to get the e nterprise colla pse d. To guarante e the legitimate rights a nd i nterests. Always proceed from the overall situati on of reform and devel opme nt of services, fully consider t he characteristi cs of pr oducti on a nd manageme nt in non-publi c enter prise s and social be nefits, a n accurate grasp of legal limits, pr otect the e nthusiasm of entre preneurs a nd practitioners i n innovation and entrepr ene urshi p, e nha nci ng expectations a nd confidence. To prom ote strict e nforcement . Strengthe ning law e nforceme nt procedures, im prove law e nforcement performance evaluati on, strengthe ning t he s upervi sion of law enforc ement, expl oration and practi ce of risk control mecha nism of law e nforceme nt to further sta ndardize the s ocial se curity, urba n manageme nt, road traffic admi nistrative law enfor cement, effectively free, extens ive law-e nforceme nt and lax enforceme nt of law enfor cement a nd ot her iss ues . To uphol d justi ce. Justi ce is t he last line of Defense t o safeguard fairness a nd j ustice , to unequivocally s upport the court s and procuratorates i nde pe nde ntly exercise level . .. Judicial a ctivities were rampa nt, must not be all owe d to run, favors, mone y, must not be a llowe d to knowingly vi olate the mis carriage, vi olations of the legitimate rights a nd i nterests of the mas ses must not be allowe d to a bus e of powe r, to make forest mass ca n be felt in every j udi cial ca ses i n equity and j usti ce. Four to dee pe n grass-r oots governance a ccording to la wchain do long, a nd put scale big. To s erve the development of enter prises . Duocuo s imultane ously improvi ng servi ce efficiency, buil d better publi c servi ces platform, enhance work efficie ncy, initiative to hel p busine sses solve the proj ect pr oce dures , financing l oans, iss ues such as la nd -use approval, re duce operating costs, busi nes s travel light and enhance the confi dence to ov ercome all ki nds of difficultie s and the Foundation, real entre prene urial pa ssion play e ntrepre neurs hip, enhance the i nternal vitality and creativit y. SI XING a n constr ucti on, promoting t he r ule of law, tries to make the tra nsformation of forest devel opment XI Ge neral Secretary stre sse d, to reinvig orate Northeast C hina, optimize d devel opme nt environment is very important. Envir onme nt of rule of law most gather Moss, the most conducive to devel opme nt. Impr oving the lea ding cadre s ' using t he method of thought a nd the rule of law A dministration work, problem -s olving, the a bility to pr omote the devel opment , is the key to pr omoting t he rule of law. The law may affect the efficiency of out of the path of devel opment w ill be more smoot h, won devel opme nt gains w ill be s ustai ned, a nd e nd wit h greater efficiency. Leadi ng ca dres at all levels should take the lead i n respect of law la w, abi de by, a nd a ctively foster Soci alist culture, a ctively prom oting the fiel d of multi-lev el governa nce accordi ng to la w, guide the mas ses and cons ciously a bide by the la w, failing to find law, solve t he problem by la w, in a ccorda nce w ith the law prevail. XXX admi nistration by law of leadi ng ca dres do not exist on the r ule of law, law enfor cement, casua l, and vow not to invest ors, the new s core s and other t urmoil. T hese im portant expositi ons on my distri ct create good development e nvironme nt with highly targeted and gui dance, e spe cially the General Se cretary pointed out that the chaos i n my area also exists to varyi ng degree s, s ome even quite seri ous. Lea ding cadres at all lev els must impr ove the development envir onme nt of rule of law as a fundame ntal task, a dhere to t he pr oblem ori ented, soli d and solv e the pr oblems i n the co nstruction of rule of la w, to rule t he ne w effect for development envir onme nt improvement s. To hol d "key minority". Lea ders of thi s group, althoug h few in number, but the effect is critical. If a local lea ders take the lea d right a ccor ding to la w, i n accorda nce with the law, the local CPPCC fresh, pragmati c and efficient devel opme nt environment. Conversely, if a local lea ders of ignoring t he law, impunity, not only the political environment will be de stroyed, will have seri ous implicati ons for the devel opme nt environment. Now, s ome leadi ng ca dres lack of awarenes s on the importance of learni ng, that lear n or not does not matter. Thi nk efficiency is too low too much, act a ccordi ng to the proce dur e, than a n executive order getting along with. I n deal ing with com plex iss ues, often speak of "settling" and "done"; on the iss ue of ha ndli ng letters and visits, l ike to spend money and buy stop a nd sta ble, but di sregard the la w admini stration, i n accordance with the law, t he rule cha in do long, and put scal e big. To serve t he deve lopme nt of enter prises . Duocuo sim ultane ously improving service efficiency, buil d better publi c servi ces platform , enha nce work efficie ncy, i nitiative to hel p busine sse s solve t he pr oject proce dure s, financing l oans, iss ues such as la nd -use approval, re duce operating costs, busi nes s travel light and enhance the confi dence to ov ercome all ki nds of difficultie s and the Foundati on, real entrepr ene urial pa ssion play e ntrepre neurs hip, enhance the interna l vitality and creativity. SI XING an construct i on, promoti ng the rule of law, trie s to make the transformati on of forest deve lopme nt XI General Secretary stress ed, to rei nvigorate Northeast Chi na, optimized development envir onme nt is very importa nt. Environment of rul e of law most gather Mos s, the most conducive t o devel opment . Improvi ng the lea ding ca dres ' using the method of thought a nd the rule of law A dministration work, problem-s olving , the a bility to pr omote the development, is t he key to prom oting the r ule of law. The law may affect the efficiency of out of the path of development will be more smooth, w on development gai ns will be s ustaine d, and end with greater efficie ncy. Leadi ng cadre s at all levels s hould take the lead i n respe ct of law law, abi de by, and actively foster Socialist cult ure, actively promoti ng the field of multi-level gover nance a ccording t o law, g uide t he masse s and cons ciously abi de by t he law, failing to find la w, s olve the problem by law, in accor da nce wit h the law prevail. XXX admini stration by law of leadi ng ca dres do not exist on the rule of la w, law enfor cement, cas ual, and vow not to inve stors, the new score s and other turmoil. T hes e importa nt expos itions on my district create g ood devel opment e nvironment with highly targeted a nd g uida nce, e spe cially the General Secreta ry pointe d out t hat the chaos in my area also exi sts to varying degrees, some even quite s erious. Leadi ng cadre s at all levels must improve the devel opment e nvironme nt of rule of law as a fundamental task, a dher e to the probl em oriente d, solid a nd s olve the probl ems in the construction of rule of law, to rule the new effect for devel opment e nvironment improveme nts. To hol d "key mi nority". Lea ders of thi s group, althoug h few in number, but t he effect is critical. If a local leader s take the lead rig ht accordi ng to law, in accor dance wit h the la w, the l ocal CPPCC fresh, pragmatic and efficient development e nvironme nt. Conversel y, if a local leader s of ignori ng the law, impunity, not only the politi cal envir onme nt will be destroye d, will have seri ous im plicati ons for the devel opme nt environment. Now, some lea ding cadre s lack of aware ness on t he importa nce of learni ng, that lear n or n ot doe s not matter. Think efficie ncy i s too l ow too much, act a ccording t o the pr oce dure, t han a n executive order getting al ong wit h. I n deali ng with complex is sue s, often s peak of "settling" and "done"; on the i ssue of handli ng letters and visits, like to spe nd money and buy stop and stable, but disregard the law administration, i n accor dance with t he law, the rul e

(3) P{| sin x |? 1 / 2} = P{?1 / 2 ? sin x ? 1 / 2} ? P{?? / 6 ? x ? ? / 6} ? 1 / 2 (4)函数 y ? 零, 则 Y ?

x ? ? ? 的反函数为 h( y ) ? 2 y ? ,其导数 h ' ( y) ? 2 在 (??, ?) 恒大于 2 4 2

X ? ? 的概率密度: 2 4

? ? ? ? ? ?1 0? y? ? cos(2 y ? ) ? 2, 0 ? y ? ?cos(2 y ? ), f Y ( y) ? ? 2 2 2 ?? 2 2 ? ? 其它 ?0, 其它 ?0,
3、设随机变量 X 服从泊松分布,且 P{X ? 1} ? P{X ? 2} ,求 P{ X ? 4} 及 P{ X ? 1} 。 解:由随机变量 X 服从泊松分布,即 X 的分布律为 P{ X ? k} ?

?k
k!

e ?? , k ? 0,1,2,......,

? ?0
由 P{X ? 1} ? P{X ? 2} ,即

?1
1!

e ?? ?

?2
2!

e ?? ,解得 ? ? 2

P{ X ? 4} ?

2 4 ?2 2 ?2 e ? e 4! 3

P{X ? 1} ? 1 ? P{X ? 1} ? 1 ? P{X ? 0} ? P{X ? 1} ? 1 ? e ?2 ? 2e ?2 ? 1 ? 3e ?2
4、设随机变量 X 的分布律为 X 1 2
2

3


3

n


n

1/2 1/2 ? 求: Y ? sin( X ) 的分布律。 2

P

1/2



1/2



解:当 X 取 1,2,3,4,…,n,…时,Y 取 1,0,-1,0,…,即 Y 只取-1,0,1 三个值。 有 X 1 2 3 4 5 6 7 8 … Y P 1 1/2 0 1/2
2

-1 1/2
3

0 1/2
4

1 1/2
5

0 1/2
6

-1 1/2
7

0 1/2
8

… …

1 1 1 1 2 1 1 1 1 1 ? 7 ? 11 ? 13 ? ? ? ,P{Y ? 0} ? 2 ? 4 ? 6 ? 8 ? ? ? 3 15 3 2 2 2 2 2 2 2 2 1 1 1 1 8 ? P{Y ? 1} ? ? 5 ? 9 ? 13 ? ? ? , 故 Y ? sin( X ) 的分布律为 2 2 15 2 2 2 P{Y ? ?1} ?
Y P -1 2/15 0 1/3 1 8/15

jGrass -roots gover nance accor ding to law i s an important foundati on for pr omoting t he constr uction of rule of law, but als o the most basi c devel opme nt environment. De spite my good s ocial order i n General, but there are law -abi ding consci ousne ss, s ocial order is not sta ndar d, regardle ss of faith, Twining visit visit a nd other outstanding problems. We w ant to active ly promote t he field of multi -level gover nance accor ding to la w, pr omote the continuous improveme nt of the s ocial e nvironment. To pr omote universal complia nce . Actively foster the r ule of law culture , carry out law publi city a nd educati on on hone sty and tr ustwort hine ss, guide the masses a nd consci ously abi de by the law, faili ng to find method, problem -solvi ng method, method of gradually changi ng the worl d, he is not looki ng for but some one "uns poken r ules", formed all la w law, a bide by the good atmosphere. To s trengthen t he comprehensive ma nagement of publ ic se curit y. Dee pe ning peace xi ngan constr ucti on, str ongly z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r 形 情 止 禁 律 作 以 可 民 公 织 组 他 其 、 法 力 能 偿 清 代 有 。 为 任 责 担 承 者 或 照 按 时 行 履 不 务 当 , 定 约 权 债 和 人 : 念 概 的 证 保 against viole nce crime, mafia and serious crimi nal offences, to protect t he legitimate rights and interest s of citize ns, legal persons, carry out criminal poli cy of temper justice wit h mercy, the maximum stimulating social vitality, a nd ear nestly safeguar d social harm ony and stability. To res olve social confli cts by law. To further sm ooth cha nnels of reporting s ocial conditi ons a nd public opi nion, improvi ng regulati on, ar bitration, a s well as dispute res oluti on mechani sms, impleme nt fully the petitioners ' cas es "third-party" heari ngs and s upervi sing system of letters a nd cal ls, and to res olve the i nvolved law laws uit into t he or bit of rule of la w, vexatious, Twini ng visit visit, distur bing s ocial order a nd other malici ous extortion, resol utely cra ck down. F ive, improvi ng cadre s V itale, provi de strong prote ction for forest development XI Ge neral Secretary stre ssed t hat the compre hensiv e revitaliza tion in Northeast China, needs a hig h quality, s olid styl e, ca dres of the dare to pla y. Ca dre ca dres is a pledge, should want to do work and abl e to do good, ent husiasm is param ount . Treat party cadres , it is ne cess ary to Strict manageme nt, and warm care, e nable t he br oad mass es of ca dres work hard w ork, this i s two parall el principles. I n strict a ccordance wit h the st a ndar ds of good ca dres se lecti on a nd a ppoint ment, the real officers , dare officer s, those w ho wa nt to play, good as excell ent ca dres at all levels of leaders hip i n the pa st. At prese nt, some lea ding cadres w ork initiative i s not high, beyond political , idle , lazy governance governa nce, not as, sl ow, mes sy and a phenome non still exist to varyi ng de grees, affected and restricted economi c and social development. We m ust mobilize the e nthusiasm of cadres a s an urge nt task, adhere to combi nation of incentives a nd constraints, a nd a dhere to the stri ct management a nd warm care, pra ctical s oluti on "for the officer s not to" pr oblem, motivate cadres and better lea d the masse s to an undertaking , the ca dres a nd create t he ne w achievement in a dare to play, good at s how s as new. To i dentify the probl em, accurate pulse of law to visit and contribute to make visits to t he vexatious visits arroga nce . On t hese i ssue s, we need to have a pr oper understanding, shoul d take the lead to e stablis h a se nse of fear of the law, stre ng then t he applicati on of the rule of law and the r ule of law work of thinki ng and take up res ponsi bility for the constructi on of the rule of law. Put learning first. Premise i s ignorant of the la w, abi de by t he law. Lea ding ca dres at all level s shoul d take t he lea d in studying t he Constit ution a nd la ws and regulati ons closely related to w or k assumed by, a n accurate gras p of the ba sic positi on of our party to a ddre ss the i ssue of the rule of law, know n for the s cale to do thi ngs, figure out how to use it right, w hat thing s do, what not to do, it can never "legal literacy". To enhance the aw arenes s of the r ule of law. Firmly establis h the supremacy of constit utional law, l egal equality before the, right by the law makes the right to statutory, as well as t he rule of law, develop ha bits of rul e of law, to dis card the r ule and ca nnot, must not get overridden by aut hority, at the right pre ssure . Should take the lead to a bide by. Fulfil its mandate i n strict a ccorda nce wit h statutory a uthority and procedures, no mat ter what you want to a dhere t o the la w, thought of rule by law and the rul e of law to tackle hot is sue s, effective statutory duty m ust be, without a uthori zation, is not availabl e. Such as construction are as, s ome cadre s are be cause there i s no procedure is followed by the rule s, pai d a heavy price, w e shoul d learn from them, i n strict a ccordance with the law on bi ddi ng and im plementat ion .. . Promise d to give preferenti al pol icies for e nterpri ses, hesitant to cash or ca sh not at all. Mas ses feel strongly about the se iss ues, it i s ne cessary t o be s olved. To a ccel erate decentralizati on. S pecificati on li st list list of powers, res ponsi bili ties a nd neg ative, clearance, revocation does not ada pt to the current sit uation of the development of policy document s, espe cially the rig ht to admini strative examination a nd a pproval , the ca ncellation must be cancele d, the delegation must be de centralize d to achieve zer o-w ait, one-st op, seamless, im prove admi nistrative efficiency and servi ce levels. In parti cula r, the delegation of powers must be ca ught properly, never able t o loft is no answ er, no one care s, ca use backfire, people work harde r. To carry o ut the campaign. Crack dow n on law enfor cement regulati ons, uncivil a nd not as, a s undermini ng economic development, s uch as envir onme ntal problems, pay close attention to the gras s-r oots level w eaknesses, stri ctly investigate and dea l with the gras s-r oots level corr upti on and de nial of Justi ce agai nst the intere sts of the mass es, s uch as corruption a nd corr uption, rut hles s pe ople ar ound "flies", further optimization of the development envir onme nt. In particular, stre ngthe ning the construction of Governme nt credit, a nd trustworthy practice for companie s and i nvestors , and must not break faith with t he people, pr omises a nd the promi se to the society. To buil d a new of law to visit and contribute to make visits to t he v

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