week 4 quiz N2555
QUESTION1
· 1/1POINTS
Aliceselsboxesofcandyathebasebalgameandwantstoknowthemeannumberof boxesshesels.Thenumbersforthegamessofararelistedbelow.
16,14,14,21,15
Findthemeanboxessold.
AnswerExp
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week 4 quiz N2555
QUESTION1
· 1/1POINTS
Aliceselsboxesofcandyathebasebalgameandwantstoknowthemeannumberof boxesshesels.Thenumbersforthegamessofararelistedbelow.
16,14,14,21,15
Findthemeanboxessold.
AnswerExplanation
Corectanswers:
Rememberthathemeanisthesum ofthenumbersdividedbythenumberof numbers.Thereare5 numbersinthelist.Sowefindthathemeanboxessoldis
16+14+14+21+155=805=16
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QUESTION2
· 1/1POINTS
Giventhefolowinglistofprices(inthousandsofdolars)ofrandomlyselectedtrucksat acardealership,findthemedian.
20,46,19,14,42,26,33
AnswerExplanation
Corectanswers:
Ithelpstoputhenumbersinorder.
14,19,20,26,33,42,46
Now,becausethelisthaslength7,whichisod,weknowthemediannumberwilbe themid lenumber.Inotherwords,wecancountoitem 4 inthelist,whichis26.So themedianprice(inthousandsofdolars)ofrandomlyselectedtrucksatacar dealershipis26.
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QUESTION3
· 1/1POINTS
Eachpersoninagroupshufflesadeckofcardsandke psselectingacarduntila que nap ears.Findthemodeofthefolowingnumberofcardsdrawnfrom adeckuntil aque nap ears.
3,12,3,11,5,5,3,10,12
AnswerExplanation
Corectanswers:
Ifwecounthenumberoftimeseachvalueap earsinthelist,wegethefolowing frequencytable:
Value Frequency
3 3
5 2
10 1
11 1
12 2
Notethat3 ocurs3 times,whichisthegreatestfrequency,so3 isthemodeofthe numberofcardsdrawnfrom adeckuntilaque nap ears.
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QUESTION4
· 1/1POINTS
Thedatasetbelowrepresentsbugsfoundbyasoftwaretesterinherproductduring differentphasesoftesting:88,84,81,94,91,98,98,200.
Themeasuresofcentraltendencyaregivenbelow:
Mean:104.25;Median:92.5;Mode:98.Identifytheoutlierandthemeasureof centraltendencythatisaffectedbytheoutlier.
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