统计学原理形成性考核答案(principles of statistics, formative assessment, answers)

统计学原理形成性考核答案(principles of statistics, formative assessment, answers)

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1、统计学原理形成性考核答案(Principlesofstatistics,formativeassessment,answers)Assignmentone(Chapter1-3)First,thejudgmentquestion1,theresearchobjectofsocialeconomicstatisticsistheoverallquantityofsocialeconomicphenomenon.(x)2,alargenumberofobservationmethodsusedintheprocessofst

2、atisticalinvestigationmeansthatallunitsofthestudymustbeinvestigated.(*)3,comprehensiveinvestigation,includingcensusandstatisticalreports.(V)4,thekeytostatisticalgroupingistodeterminethegrouplimitandgroupdistance(x)5,inthenationalindustrialcensus,thenumberofnation

3、alenterprisesisstatisticaloverall,eachindustrialenterpriseistheoverallunit.(x)6.China'spopulationcensusiscarriedouteverytenyears,soitisacontinuoussurveymethod.(x)7.Investigatetheproductionsituationofthesamelargeironandsteelproductionbase,inordertomasterthebasicsi

4、tuationofthenationalironandsteelproduction.Thissurveyisanoncomprehensivesurvey.(V)8,asurveyofengineeringandtechnicalpersonnelinacity,thewagelevelofengineeringandtechnicalpersonnelinthiscityisaquantitymark.B.9.InvestigatethemainfoodcropsproducingareasinChina,inord

5、ertomasterthebasicsituationofthegrowthofmajorfoodcropsinChina,thissurveyisthefocusofinvestigation.B.10,thecensusunitandtheinvestigationunitareallindividuals,andthefillingunitsarehouseholds.(V)Two,singlechoicequestions1,thereare670industrialenterprisesinaregion,to

6、studytheproductionoftheseenterprises,theoverallunitis(C)A,eachindustrialenterprise;B,670industrialenterprises;C,everyproduct;D,allindustrialproducts2.Thereportingtimeofannualproductionandoperationresultsofindustrialenterprisesinacityin2003isstipulatedinJanuary31,

7、2004,andtheinvestigationperiodis(B).A,onedayB,onemonthC,oneyearD,oneyearandonemonth3,intheNationalCensus(B).A,maleisqualitymarkB,person'sageisvariableC,theaveragelifeexpectancyofpopulationisD,andthepopulationofChinaisastatisticalindex4,amachinetoolfactorytocalcul

8、atetheenterprise'sautomaticmachinetooloutputandoutputvalue,theabovetwovariablesare(D).BothAandtwoarediscretevariables,BandtwoarecontinuousvariablesC,theformeri

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