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1、04高考排列组合，二项式及概率Thisdocumentiscollectedbyindividuals,forexchangelearningonly.Ifthereisanymistake,pleasecorrectme!04,collegeentranceexaminationpermutations,binomialandprobability(1)multiple-choicequestions1.(Jiangsu2004・)selectedfrom4maleand3femalestudentsin4peo
2、pleattendedaforum,ifthe4peoplemusthavebothboysandgirls,thenchooseadifferentmethodwith(D)(A)140species(B),120species(C),35species(D),34speciesIntheexpansionof2.(2004.Jiangsu),thecoefficientofX3is(C)(A)6(B)12(C)24(D)483.(Jiangsu2004.)ahomogeneousdice(itisakindof
3、thesurfacewerelabeledwith1points,2,3,4,5,6cubetoys)hasthrown3times,atleast6pointsonceupandprobability(D)⑷(B)(C)(D);Intheexpansionof4.(2004.national),theconstanttermis(A)A.14C.42B.14D.425.(2004.national),fromthefigures1,2,3,4,5,,randomlyextracted3digits(allowin
4、grepetition)toformathreedigitnumber,thesumoftheirnumbersequalto9oftheprobabilityis(c)A.B.C.D.6.(2004.Fujianschool),asecondaryschoolgradesixclasses,nowfromthefieldto4students,tobearrangedtothegradeoftwoclasses,andeachclassarranged2,butthedifferentarrangementsfo
5、rthenumberofspecies(C)A.B.C.D.7.(2004.Fujian),if(l~2x)9,theopeningofthirdentriesis288,thenthevalueis(A)A.2B.1C.D.8.(2004.Chongqing)aschoolgradethreeheldaspeechcontestatotalof10studentshaveparticipated,includingaClass3,twoclass2,otherclassesof5,iftheballottodet
6、erminetheirorderofpresentation,isaclassof3studentswastogether(ofspeech,andthe2bitserialnumberconnected)classoftwostudentshavenoprobabilityofbeingtogetheris:(D)A.B.C.D.9.(2004・Liaoningvolumes),aandBtwopeopleindependentlysolvethesameproblem,asolutiontothisproble
7、mprobabilityisPl,BtosolvethisproblemprobabilityisP2,thenthereare1peopletosolvethisproblemprobabilityisBA.B.C.D.5.(2004.Liaoning)hastworowsofseats,front11seats,rear12seats,wearrange2peopleseated,3provisionsnotfrontandcenterseat,andthe2peoplearoundtheadjacent,so
8、thenumberofdifferentlinesisBA.234B.346C.350D.3636.(2004.EducationEditionScience)4teachersassignedto3secondaryschoolstoteach,eachmiddleschoolatleast1,thedifferentallocationschemeA,1
