概率论与数理统计题库范文

肃清流毒影响获得了辉煌的成就，通过参观学习，认识到了为什么会有腐败案例，知道了要铭记初心，不断的提高自我素质Ellipticityofelbowpipeswithdiameterslessthanorequalto150mmmustbenotgreaterthan8%diameterof200mmorlessshallnotbegreaterthan6%.Wallthicknessofthepipewallthinningratemustnotexceedtheoriginal15%.Creaseroughness:diameter125mmorless,shallnotexceed3mmdiameterlessthanorequalto200mm,notmorethan4mm.7.3.9simmeringbendingproductionofsquaresteeltubeextension,tousethewholetubebending.Interfaceifnecessary,theweldingpositionshouldbelocatedinthemiddleoftheverticalarm.7.3.10installexpansionjointsshouldbedone.Ifdesignisnotrequired,pipecompensatorlengthenshouldconformtotherequirementsinthefollowingtable:squarescalelengthδxisequalto1/2.Prestretchtolerance:casing+5mm,+10mm.7.3.11pipeform,location,spacingshallmeetthedesignandspecifications.7.3.12pipingonbackorreturnpipeathigherlevelsoftheuppertoautomaticvalvetoinstalladrainvalvebelowthehorizontalparts.7.3.13supportsandhangersofchecksandthenumber1)hangerinstalledmustbecheckedbeforeinstallationofsupportsandhangerspartmodels,specificationsofspringssettingvalues,whetherthematerialsmeettherequirementsofdrawingsanddocuments;2)supportsandhangersofmaterial,sizeandaccuracyshallconformtotheprovisionsofthedesigndrawings,materialtechnicalrequirementsshouldbeconsistentwithnationalstandards,industrystandardsandtechnicalrequirementsrelatedtothealloyspectrumreviewshouldbecarriedout;3)pipesupportsandhangerspartplantproductqualitycertificateforeachvariablespringsupports,constantsupporthangers,dampers,damperfunction,thereshouldbefactorycalibratedtest一、事件的关系与运算1、设A表示事件“甲种产品畅销，乙种产品滞销”，则其对立事件A为（A）（A）“甲种产品滞销或乙种产品畅销”.（B）“甲种产品滞销”.（C）“乙种产品畅销”.（D）“甲种产品滞销，乙种产品畅销”.8、设ABC、、为三个事件，则事件“ABC、、都不发生”可表示为(C)(A)ABC；(B)1ABC；(C)ABC；(D)ABC.1、某地震现场应急工作组对震区三幢楼房开展建筑安全评估与鉴定，设事件iA={第i幢楼房经评估鉴定为安全}（i=1，2，3）。事件“恰有一幢楼房经评估鉴定为安全”用123AAA、、可表示为123123123AAAAAAAAA；二、五大公式：3、设X在1,2,3,4中等可能取值，Y再从X,,1中等可能取一整数，则）（4YP（A）；(A)1/16；(B)7/48；(C)13/48；(D)25/48.1、已知事件A，B有概率4.0)(AP，5.0)(BP，条件概率3.0)|(ABP，则)(BAP0.62．1、已知事件A，B有概率4.0)(AP，5.0)(BP，条件概率3.0)|(ABP，则)(BAP0.78；1、已知事件A，B有概率4.0)(AP，条件概率3.0)|(ABP，则)(BAP0.28；1、设A、B、C是三个事件，3/1)()()(CPBPAP，0)()(ACPABP，4/1)(BCP，则)(CBAP3/4（或0.75）；1、设4/1)(AP，3/1)(ABP，2/1)(BAP，则)(BAP1/3；1、设“甲地发生春季旱情”A、“乙地发生春季旱情”B是两个随机事件，且4/1)(AP，3/1)(ABP，2/1)(BAP，则情”“甲或乙地发生春季旱C发生的概率为1/3；1、已知4/1)()()(CPBPAP，0)(ABP，6/1)()(BCPACP，则肃清流毒影响获得了辉煌的成就，通过参观学习，认识到了为什么会有腐败案例，知道了要铭记初心，不断的提高自我素质Ellipticityofelbowpipeswithdiameterslessthanorequalto150mmmustbenotgreaterthan8%diameterof200mmorlessshallnotbegreaterthan6%.Wallthicknessofthepipewallthinningratemustnotexceedtheoriginal15%.Creaseroughness:diameter125mmorless,shallnotexceed3mmdiameterlessthanorequalto200mm,notmorethan4mm.7.3.9simmeringbendingproductionofsquaresteeltubeextension,tousethewholetubebending.Interfaceifnecessary,theweldingpositionshouldbelocatedinthemiddleoftheverticalarm.7.3.10installexpansionjointsshouldbedone.Ifdesignisnotrequired,pipecompensatorlengthenshouldconformtotherequirementsinthefollowingtable:squarescalelengthδxisequalto1/2.Prestretchtolerance:casing+5mm,+10mm.7.3.11pipeform,location,spacingshallmeetthedesignandspecifications.7.3.12pipingonbackorreturnpipeathigherlevelsoftheuppertoautomaticvalvetoinstalladrainvalvebelowthehorizontalparts.7.3.13supportsandhangersofchecksandthenumber1)hangerinstalledmustbecheckedbeforeinstallationofsupportsandhangerspartmodels,specificationsofspringssettingvalues,whetherthematerialsmeettherequirementsofdrawingsanddocuments;2)supportsandhangersofmaterial,sizeandaccuracyshallconformtotheprovisionsofthedesigndrawings,materialtechnicalrequirementsshouldbeconsistentwithnationalstandards,industrystandardsandtechnicalrequirementsrelatedtothealloyspectrumreviewshouldbecarriedout;3)pipesupportsandhangerspartplantproductqualitycertificateforeachvariablespringsupports,constantsupporthangers,dampers,damperfunction,thereshouldbefactorycalibratedtest-2-)(CBAP5/12；1、已知4/1)()()(CPBPAP，0)()(BCPABP，8/1)(ACP，则)A(CBP5/8；1、已知2/1)(AP，3/1)(BP，10/1)(ABP，则)(BAP4/15；6、设A、B是两事件，如果满足等式P(AB)=P(A)P(B),则称事件A、B相互独立；1、设“甲地房价下跌”A、“乙地房价下跌”B是两个随机事件，且4/3)(AP，3/2)(ABP，2/1)(BAP，则“甲或乙地房价下跌”C发生的概率为；1、已知(),(),PBbPABc且bc，则()PBAb-c；3、设A、B、C是随机事件，A与C互不相容，()1/2,()1/3,PABPC则(|)PABC3/4；1．设事件A、B互不相容，pAP)(，qBP)(，则)(BAP（A）qp)1(.（B）pq.（C）qp.（D）p.（D）1、若6.0)(,4.0)(,5.0)(BAPBPAP，则)(ABP（C）(A)0.2；(B)0.45；(C)0.6；(D)0.75；1、若2/1)(,3/1)(,4/1)(BAPABPAP，则)(BAP（C）(A)1/5；(B)1/4；(C)1/3；(D)1/2；9、设()0.8,()0.7,(|)0.8,PAPBPAB则下列结论正确的是（A）(A)A与B相互独立；(B)A与B互斥；(C)BA；(D)()()()PABPAPB.8、对于任意事件A和B，有()PAB（C）(A)()()PAPB;(B)()()()PAPBPAB;(C)()()PAPAB;(D)()()()PAPBPAB.9、设A、B为随机事件，且()0,(|)1,PBPAB则必有（C）(A)()()PABPA;(B)()()PABPB;(C)()()PABPA;(D)()()PABPB.肃清流毒影响获得了辉煌的成就，通过参观学习，认识到了为什么会有腐败案例，知道了要铭记初心，不断的提高自我素质Ellipticityofelbowpipeswithdiameterslessthanorequalto150mmmustbenotgreaterthan8%diameterof200mmorlessshallnotbegreaterthan6%.Wallthicknessofthepipewallthinningratemustnotexceedtheoriginal15%.Creaseroughness:diameter125mmorless,shallnotexceed3mmdia