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OrganizingPandPVisualizingPVariables 2-1



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P P P P P P P




crosoft Excel, 8th Edition, David M. Levine
P P P P P P

,2-2 OrganizingPandPVisualizingPVariables


CHAPTER 2: ORGANIZING AND VISUALIZING
P P P P P



VARIABLES
SCENARIOP2-1

AnPinsurancePcompanyPevaluatesPmanyPnumericalPvariablesPaboutPaPpersonPbeforePdecidingPonPanPapp
ropriatePratePforPautomobilePinsurance.PAPrepresentativePfromPaPlocalPinsurancePagencyPselectedPaPrand
omPsamplePofPinsuredPdriversPandPrecorded,PX,PthePnumberPofPclaimsPeachPmadePinPthePlastP3Pyears,Pwi
thPthePfollowingPresults.
PP X fP
1 14
2 18
3 12
4 5
5 1

1. ReferringPtoPScenarioP2-1,PhowPmanyPdriversParePrepresentedPinPthePsample?
a) 5
b) 15
c) 18
d) 50

ANSWER:
d
TYPE:PMCP DIFFICULTY:PEasy
KEYWORDS:PfrequencyPdistribution

2. ReferringPtoPScenarioP2-1,PhowPmanyPtotalPclaimsParePrepresentedPinPthePsample?
a) 15
b) 50
c)PPP 111
d)PPP 250

ANSWER:
c
TYPE:PMCP DIFFICULTY:PModerate
KEYWORDS:Pinterpretation,PfrequencyPdistribution

3. APtypePofPverticalPbarPchartPinPwhichPthePcategoriesParePplottedPinPthePdescendingPrankPorderPofPtheP
magnitudePofPtheirPfrequenciesPisPcalledPa
a) contingencyPtable.
b) ParetoPchart.
c) stem-and-leafPdisplay.
d) piePchart.

ANSWER:
b
TYPE:PMCP DIFFICULTY:PEasy
KEYWORDS:PParetoPchart

, OrganizingPandPVisualizingPVariables 2-3


SCENARIOP2-2

AtPaPmeetingPofPinformationPsystemsPofficersPforPregionalPofficesPofPaPnationalPcompany,PaPsurveyPwasP
takenPtoPdeterminePthePnumberPofPemployeesPthePofficersPsupervisePinPthePoperationPofPtheirPdepartme
nts,PwherePXPisPthePnumberPofPemployeesPoverseenPbyPeachPinformationPsystemsPofficer.
PPX f_
1 7
2 5
3 11
4 8
5 9

4. ReferringPtoPScenarioP2-
2,PhowPmanyPregionalPofficesParePrepresentedPinPthePsurveyPresults?Pa)5
b) 11
c) 15
d) 40

ANSWER:
d
TYPE:PMCP DIFFICULTY:PEasy
KEYWORDS:Pinterpretation,PfrequencyPdistribution

5. ReferringPtoPScenarioP2-
2,PacrossPallPofPthePregionalPoffices,PhowPmanyPtotalPemployeesPwerePsupervisedPbyPthosePsur
veyed?
a) 15
b) 40
c) 127
d) 200

ANSWER:
c
TYPE:PMCP DIFFICULTY:PModerate
KEYWORDS:Pinterpretation,PfrequencyPdistribution

6. ThePwidthPofPeachPbarPinPaPhistogramPcorrespondsPtoPthe
a) differencesPbetweenPthePboundariesPofPthePclass.
b) numberPofPobservationsPinPeachPclass.
c) midpointPofPeachPclass.
d) percentagePofPobservationsPinPeachPclass.

ANSWER:
a
TYPE:PMCP DIFFICULTY:PEasy
KEYWORDS:Phistogram

, 2-4 OrganizingPandPVisualizingPVariables


SCENARIOP2-3

EveryPspringPsemester,PthePSchoolPofPBusinessPcoordinatesPaPluncheonPwithPlocalPbusinessPleadersPforP
graduatingPseniors,PtheirPfamilies,PandPfriends.PCorporatePsponsorshipPpaysPforPthePlunchesPofPeachPofPt
hePseniors,PbutPstudentsPhavePtoPpurchasePticketsPtoPcoverPthePcostPofPlunchesPservedPtoPguestsPtheyPbrin
gPwithPthem.PThePfollowingPhistogramPrepresentsPthePattendancePatPthePseniorPluncheon,PwherePXPisPtheP
numberPofPguestsPeachPgraduatingPseniorPinvitedPtoPthePluncheonPandPfPisPthePnumberPofPgraduatingPsen
iorsPinPeachPcategory.

160 152

140

120

100
85
80

60

40

17 18
20
3 0
0
0 1 2P 3 4 5
GuestsP per
P Studen
t

7. ReferringPtoPthePhistogramPfromPScenarioP2-
3,PhowPmanyPgraduatingPseniorsPattendedPthePluncheon?
a) 4
b)PPP 152
c)PPP 275
d)PPP 388

ANSWER:
c
TYPE:PMCP DIFFICULTY:PDifficult
EXPLANATION:PThePnumberPofPgraduatingPseniorsPisPthePsumPofPallPthePfrequencies,Pf.PKEYW
ORDS:Pinterpretation,Phistogram

8. ReferringPtoPthePhistogramPfromPScenarioP2-
3,PifPallPthePticketsPpurchasedPwerePused,PhowPmanyPguestsPattendedPthePluncheon?
a) 4
b)PPP 152
c)PPP 275
d)PPP 388

ANSWER:
d
TYPE:PMCP DIFFICULTY:PDifficult
EXPLANATION:PThePtotalPnumberPofPguestsPis XP f

6
i1 iP i

KEYWORDS:Pinterpretation,Phistogram