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1、一．選擇題(每題1分，共10分)1.Categoricaldatacanbefurtherdividedintonominaland___data.A.quantitativeB.scaleC.qualitativeD.ordinal2.Forasamplewiththedata{10,8,20,25,12},thesamplemeanis____A.14B.15C.16D.173.LetXbeBinomial(4,0.5),thenP(X=0)is____A.1/8B.1/4C.1/16D.1/24.Whichnumberisthesquareofsomeinteger?A.6B.7C.
2、8D.95.TherangeforthePearsoncorrelationcoefficientis____A.[0,1]B.[-1,1]C.(-1,1)D.[-1,0]6.WhichofthefollowingisNOTusedtoameasureofcentraltendency?A.meanB.medianC.modeD.variance7.Whichofthefollowingisamethodofstatisticalinference?A.meanB.frequencytableC.box-plotD.t-test8.LetX,Ybethetworandomvariable,
3、whichofthefollowingisTRUE?A.E(X-Y)=EX-EYB.E(XY)=EXEYC.E(X/Y)=EX/EYD.Var(X+Y)=Var(X)+Var(Y)9.Whatdoestheabbreviations.t.standsfor?A.thatisC.forexampleC.suchthatD.because10.Whatdoestheabbreviationi.e.standsfor?A.thatisC.forexampleC.suchthatD.because一．將下面的統(tǒng)計(jì)術(shù)語(yǔ)翻譯成中文或者英文(每題1分，共20分)1.描述性統(tǒng)計(jì)2.點(diǎn)估計(jì)3.正態(tài)分布4.最
4、大似然估計(jì)5.總體6.假設(shè)檢驗(yàn)7.實(shí)驗(yàn)設(shè)計(jì)8.方差分析9.中心極限定理10.大數(shù)定律11.Probability12.Statistics13.Unbiasedestimate14.Multipleregression15.Bernoullidistribution16.Timeseries17.Multicollinearity18.Densityfunction19.Histogram20.Randomvariable一．將下面的句子翻譯成英文(每題4分，共20分)1.統(tǒng)計(jì)學(xué)是一門(mén)收集，整理，分析和解釋數(shù)據(jù)的學(xué)科2.X1,X2…Xn是一列獨(dú)立同分布的隨機(jī)變量。3.二項(xiàng)分布B(n,p)的
5、數(shù)學(xué)期望是np，方差是np(1-p).4.因?yàn)閜值小于0.05，因此我們拒絕原假設(shè)。5.變量分為定量變量和定性變量。二．將下面的段落翻譯成中文(每題5分，共20分)1.Theregressionmodelsofstandardlinearregressionrequireacontinuousresponsevariable.Inthissection,weconsidermodelswithacategoricalresponse.Therearemanytypesofthesemodels,andwefirstconsiderlogisticregressionmodels.Thesi
6、mplelogisticregressionmodelisawaytomodeltheprobabilityofasuccess,asafunctionofthecontinuouspredictorx.2.Bothempiricalprocessesandsemiparametricinferencetechniqueshavebecomeincreasinglyimportanttoolsforsolvingstatisticalestimationandinferenceproblems.Thesetoolsareparticularlyimportantwhenthestatist
7、icalmodelforthedataathandissemiparametric,inthatithasoneormoreunknowncomponentwhichisafunction,measureorsomeotherinfinitedimensionalquantity.Semiparametricmodelsalsotypicallyhaveoneormorefinite-dimensionalEuclide
