Test Bank For Modern Elementary Statistics 12th Edition All Chapters - 9780131874398.pdf

DOWNLOADgTHEgTestgBankgforgElementarygStatisticsgBriefgVersiong8thgEdit
iongBluman
MULTIPLEgCHOICE.g Chooseg theg oneg alternativeg thatg bestg completesg theg statementg org answersg theg question.

Whichgofgthegfollowinggdoesgnotgneedgtogbegdonegwhengconstructinggagfrequencygdistribution?
A) usegclassesgthatgaregmutuallygexclusive
B) selectgthegnumbergofgclassesgdesired
C) findgthegrange
D) makegthegclassgwidthgangevengnumber
Answer:g D

GreggwantsgtogconstructgagfrequencygdistributiongforgthegpoliticalgaffiliationgofgthegemployeesgatgOw
en'sgHardwaregStore.g Whatgtypegofgdistributiongwouldgbegbest?
A) grouped
B) categorical
C) cumulative
D) ungrouped
Answer:g B

Thirtygstudentsgrecordedgthegcolorsgofgtheirgeyes,gchoosinggfromgthegcolorsgbrown,gblue,ggreen,ghaze
l,gandgblack.g Thisgdatagcangbegappropriatelygsummarizedginga(n) .
A) open-endedgdistribution
B) categoricalgfrequencygdistribution
C) groupedgfrequencygdistribution
D) uppergboundary
Answer:g B

Whengthegrangegisglarge,gandgclassesgthatgaregseveralgunitsgingwidthgaregneeded,gagfreque
ncygdistributiongisgused.
A) grouped
B) cumulative
C) ungrouped
D) upper-ended
Answer:g A

Thegcumulativegfrequencygforgagclassgisgthegsumgofgthegfrequenciesgofgthegclassesglessgthangandgequ
algtogtheguppergboundarygofgthegspecificgclass.
A) False
B) True
Answer:g B




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,DOWNLOADgTHEgTestgBankgforgElementarygStatisticsgBriefgVersiong8thgEdit
iongBluman
Agrecentgstatisticsgexamgyieldedgthegfollowingg25gscores.gConstructgaggroupedgfrequencygdistributio
ngwithgthegclassglimitsgshowngbelow.

64 84 71 59 67
58 88 68 70 94
90 81 43 77 86
72 81 79 98 52
72 72 47 81 96

ClassgLimits Tally Frequency
41-50
51-60
61-70
71-80
81-90
91-100
A)
ClassgLimits Frequency
41-50 2
51-60 2
61-70 5
71-80 6
81-90 7
91-100 3
B)
ClassgLimits Frequency
41-50 3
51-60 2
61-70 4
71-80 7
81-90 6
91-100 3
C)
ClassgLimits Frequency
41-50 2
51-60 3
61-70 5
71-80 5
81-90 6
91-100 4




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,DOWNLOADgTHEgTestgBankgforgElementarygStatisticsgBriefgVersiong8thgEdit
iongBluman
D)
ClassgLimits Frequency
41-50 2
51-60 3
61-70 4
71-80 6
81-90 7
91-100 3
Answer:g D

Thegfollowinggfrequencygdistributiongpresentsgthegfrequencygofgpassengergvehiclesgthatgpassgthroug
hgagcertaingintersectiongfromg8:00gAMgtog9:00gAMgongagparticulargday.

VehiclegType Frequency
Motorcycle 9
Sedan 66
SUV 79
Truck 45

WhatgisgthegrelativegfrequencygofgthegMotorcylegcategory?
A) 9
B) 0.045
C) 0.114
D) 9%
Answer:g B

Thegfollowinggfrequencygdistributiongpresentsgthegfrequencygofgpassengergvehiclesgthatgpassgthroug
hgagcertaingintersectiongfromg8:00gAMgtog9:00gAMgongagparticulargday.

VehiclegType Frequency
Motorcycle 11
Sedan 71
SUV 73
Truck 45

Constructgagrelativegfrequencygdistributiongforgthegdata.
A)
VehiclegType RelativegFrequency
Motorcycle 0.11
Sedan 0.71
SUV 0.73
Truck 0.45



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, DOWNLOADgTHEgTestgBankgforgElementarygStatisticsgBriefgVersiong8thgEdit
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B)
VehiclegType RelativegFrequency
Motorcycle 0.055
Sedan 0.355
SUV 0.365
Truck 0.225

C)
VehiclegType RelativegFrequency
Motorcycle 0.151
Sedan 0.973
SUV 1
Truck 0.616

D)
VehiclegType RelativegFrequency
Motorcycle 0.055%
Sedan 0.355%
SUV 0.365%
Truck 0.225%

Answer:g B

AgsurveygwasgtakengonghowgmuchgtrustgpeoplegplacegingtheginformationgtheygreadgongthegInternet.
Constructgagcategoricalgfrequencygdistributiongforgthegdata.gAg trustgingallgthatgtheygread,gMg trustging
mostgofgwhatgtheygread,gHg trustgingaboutgone-
halfgofgwhatgtheygread,gSg trustgingagsmallgportiongofgwhatgtheygread.

M M H M M M M M A M
H M M M M M S A H M
M H M M M M M M M M
M M M M S M M M M M


A)
Classg Frequency
gA 2
M 32
H 4
S 2




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