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024 & ACTUAL QUESTIONS & REAL EXAM ANSW
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Whichschoicesissasvariable?s
A.ThesnumbersofsstatessinsthesUnitedsStatessofsAmericas
B.Thescostsofsyoursdailysnewspapers
C.Thesamountsasteenagersmakessbabysittings
D.Yoursshoessizes-sANSWER-sC
Whichschoicesissasquantitativesvariable?s
A.sS,srepresentingsthesnumbersofsregularsweeklysshippingsdeliveriessyourscompany'sstruck
ssmakes
B.sP,srepresentingsthesmonthlysprofitsbasedsonsthesnumbersofscustomersswhosneededsplum
bingsservicess
,C.sR,srepresentingsthesmonthlysrentsforsyourscompany'ssofficesbuildings
D.sM,srepresentingsthesfederalsminimumswages-sANSWER-sB
Insaslawn-
mowingsbusiness,sthesamountsofstimesansemployeesspendssmowingsaslawnsdependssonsth
essizesofstheslawn.sItsmightsalsosdependsonssomesothersfactors.s
Whichschoicesrepresentssasqualitativesvariablesinsthisslawn-mowingsbusiness?s
A.sG,srepresentingsthesamountsofsgassneededstosmowsasgivenslawns
B.sW,srepresentingsthesnumbersofshourssthesemployeesspendssworkingseachsdays
C.sH,srepresentingstheshillinesssofstheslawns
D.sM,srepresentingsthesmaximumsamountsofslawnsthatsasgivensmowerscanscompletespersho
urs-sANSWER-sC
Whichsvariablesissrelatedstosthesvariablestemperature?s
A.sPenssaless
B.sComputerssaless
C.sHotschocolatessaless
D.sBookssaless-sANSWER-sC
,Thesnumbersofsyearsssomeonesregularlysdepositssmoneysinsassavingssaccountsissrelatedsto
thesamountsofsmoneysinsthesaccount.sT/Fs-sANSWER-sT
s
Thesamountsofsfoodspreparedsforsascateredseventsdependssonsthesnumbersofspeoplesattend
ing.s
Whichseventsallowssyoustospredictsthesoutputsbasedsonsansinput?
Thescolorsgumballsyousgetsfromsasgumballsmachinesbasedsonswhichsquartersyousputsintosth
esmachine
Whatscomessoutsofsasvendingsmachinesbasedsonsyoursselection
Whethersorsnotssomeoneswillsoptsintosasretirementssavingssprogramsbasedsonseyescolor
Thessexsofsasbabysbasedsonswhatsthesmotherseatssduringspregnancy
Whatscomessoutsofsasvendingsmachinesbasedsonsyoursselection
Correct!sEachsbuttonscorrespondsstosasdifferentsitem—
yoursselectionspredictsswhatscomessoutsofsthesvendingsmachine.
Ascowseatssgrass,swhichsissturnedsintosmilksbysitssbody,sandsasfarmersthensmilkssthescow.
Whatsissthesinput?
Thesgrass
Thesmilk
Thescow
Thesfarmer
Thesgrass
Correct!sThesgrasssissthesinput.
, Whichsofsthesesrepresentssasfunction?
Input:sThescostsofsansitem;sOutput:sThessalesstaxsowedsonsthesitem
Input:sAsteacher'ssgender;sOutput:sSubjectshesorsshesteaches
Input:sAsstudent'ssage;sOutput:sThesnumbersofssiblingssasstudentshas
Input:sThesamountsofscoffeesconsumed;sOutput:sLevelsofsintelligence
Input:sThescostsofsansitem;sOutput:sThessalesstaxsowedsonsthesitem
Correct!sSincesonesinput,sthescostsofsthesitem,sissmatchedswithsexactlysonesoutput,sthesamo
untsofssalesstaxsowed,sthississasfunction.
AscompanysusessthesfunctionsBstospredictsthescostsofsbenefitssgivensthesnumbersofsemploye
es,sn.
Whatsmightsthesinversesfunctionsbesusefulsfor?
Thesinversesfunctionscouldsbesusedstospredictsthescostsofsbenefitssforsnewshires.
Thesinversesfunctionscouldsbesusedstosfiguresoutshowsmanysemployeessthescompanyscoulds
employsifsthesbudgetsforsbenefitsswasslimited.
Thesinversesfunctionscouldsbesusedstosfiguresoutshowsmanysemployeessthescompanyscoulds
employsifsthesbudgetsforsbenefitsswasslimited.
Correct!sThesinversesfunctionswouldsbesn(B)
,swhichswouldsgivesyousthesnumbersofsemployeessgivensthescostsofsbenefits.sThesoriginalsfu
nctionswouldshavesbeenswrittensassB(n)
.
Asfunctionsdoublesseachsinput.sWhatsdoessthesinversesfunctionsdo?
Doublesseachsinput
Subtractss2sfromseachsinput