STAT 301 Exam 1 Questions and Answers Updated 2026

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STAT 301 Exam 1 Questions and Answers Updated 2026

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2026/2027

Institution 301 - Mathmatical Science

Course 301 - Mathmatical science

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STAT 301 Exam 1 Questions and Answers Updated 2026

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STAT 301 Exam 1
Questions and Answers
Updated 2026
VariablesB-
BAnswerBareBitemsB(usuallyBrepresentedBbyBlettersBorBsymbols)BofBinterestBwhichBcan
BtakeBonBdifferentBvalues.

PopulationB-BAnswerB-isBtheBentireBoverallBgroupBweBareBinterestedBin.

-canBbeBlargeBorBsmall

SampleB-BAnswerBisBaBsubsetBofBtheBentireBpopulationBthatBweBcollectBdataBon.B

TheBvariable(s)BofBinterestBis/areBmeasuredBonBeachBmemberBofBthe

DescriptiveBstatisiticsB-BAnswerB-
BinvolveBdescribingBaBdataset:BweBcouldBmakeBaBgraphBofBit,BorBtellByouBitsBaverage
BandBhowBspreadBoutBitBis.BWeBcouldBtellByouBanyBinterestingBfeaturesBaboutBit.B

-WeBdoBnotBgeneralizeBfactsBaboutBtheBdatasetBtoBaBlargerBgroup.

statisticalBinferenceB-
BAnswerBTheBprocessBofBusingBdataBobtainedBfromBaBsampleBtoBmakeBestimatesBorB
testBhypothesesBaboutBtheBcharacteristicsBofBaBpopulation.

ParameterB-BAnswerBaBnumericBcharacteristicBpertainingBtoBaBpopulation.

StatisticB-
BAnswerBisBanyBnumberByouBcalculateBusingBdata.BWeBoftenBuseBstatisticsBtoBestimat
eBparameters.

, PredictorBVariableB-
BAnswerBSometimesBcalledBtheB"independentBvariable",BorBtheB"explanatoryBvariable".
BTheseBareBvariablesBwhichBweBthinkBwillBbeBusefulBinBpredictingBorBinBexplainingBth
eBresponseBvariable.BThereBmayBbeBmoreBthan

ResponseBVariableB-
BAnswerBSometimesBcalledBtheB"dependentBvariable".BThisBisBtheBvariableBwhoseBbeh
aviorBweBwantBtoBexplain,BorBwhoseBvalueBweBwantBtoBpredict.

quantitiveBvariableB-
BAnswerBNumericBvariables,Be.g.Bheight,Bweight,BnumberBofBcustomers,BbloodBalcohol
Blevel.

categoricalBvariableB-
BAnswerBNamesBorBcategories,Be.g.BeyeBcolor,BtypeBofBcar,BpoliticalBaffiliation,BbreedB
ofBdog.

quantitiveBcontinuousB-
BAnswerB●NumericBvariablesBwhichBcanBbeBreportedBtoBanBarbitraryBnumberBofBdeci
malBplaces.B

●Typically,BareBmeasuredBwithBsomeBkindBofBdevice,BsuchBasBaBthermometerBorBaBru
ler.

QuantitiveBdiscreteB-
BAnswerB●NumericBvariablesBwhereBonlyBintegerBresponsesBmakeBsense.BTypically,Bar
eBcounted.

●Examples:B#BofBpetsBinBaBhousehold,BfinishingBplaceBofBaBrunnerBinBaBrace...

categoricalBOrdinalBvariablesB-
BAnswerBareBtypicallyBplacedBinBaBsetBorder.BIfBplacingBtheBvaluesB"outBofBorder"Bw
ouldBbeBconfusing,BthenBitBshouldBprobablyBbeBtreatedBas___

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Uploaded on: August 4, 2026
Number of pages: 6
Written in: 2026/2027
Type: Exam (elaborations)
Contains: Questions & answers

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