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STATISTICS FINAL EXAM NON-CREDIT TEST REVIEW QUESTIONS WITH VERIFIED ANSWERS
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STATISTICS FINAL EXAM NON-CREDIT TEST REVIEW QUESTIONS WITH VERIFIED ANSWERS.
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STATISTICS FINAL EXAM NON-CREDITTEST REVIEW QUESTIONS WITH
VERIFIED ANSWERS
E. ggRight-skewed ggwith gga ggpossible ggoutlier gg- ggAnswer ggThe gghistogram ggbelow
ggdisplays ggthe ggdistribution ggof gg50 ggages ggat ggdeath ggdue ggto ggtrauma gg(accidents
ggand gghomicides) ggthat ggwere ggobserved ggin gga ggcertain gghospital ggduring gga
ggweek.
Which ggof ggthe ggfollowing ggbest ggdescribes ggthe ggshape ggof ggthe gghistogram?
A. ggSymmetric
B. ggLeft-skewed ggwith ggno ggoutliers
C. ggRight-skewed ggwith ggno ggoutliers
D. ggLeft-skewed ggwith gga ggpossible ggoutlier
E. ggRight-skewed ggwith gga ggpossible ggoutlier
12 gg
(Mode gg- ggThe ggvalue ggthat ggoccurs ggmost ggfrequently ggin gga ggset ggof ggdata.) gg-
ggAnswer ggHere ggare ggthe ggnumber ggof gghours ggthat gg9 ggstudents ggspend ggon ggthe
ggcomputer ggon gga ggtypical ggday:
1 gg2 gg4 gg7 gg8 gg9 gg12 gg12 gg15
What ggis ggthe ggmode ggnumber ggof gghours ggspent ggon ggthe ggcomputer?
4.6 gg
(Sumproduct ggof ggtop ggand ggbottom ggrow ggdivided ggby ggsum ggof ggbottom ggrow) gg-
ggAnswer ggA ggrecent ggsurvey ggasks gg100 ggstudents, ggHow ggmany gghours ggdo ggyou
ggspend ggon ggthe ggcomputer ggin gga ggtypical ggday?
Of ggthe gg100 ggrespondents, gg3 ggsaid gg1 gghour, gg8 ggsaid gg2 gghours, gg12 ggsaid gg3
gghours, gg28 ggsaid gg4 gghours, gg22 ggsaid gg5 gghours, gg14 ggsaid gg6 gghours, gg8 ggsaid
gg7 gghours, gg3 ggsaid gg8 gghours, gg2 ggsaid gg9 gghours.
In ggtable ggformat, ggthe ggresults gglook gglike ggthis:
,What ggis ggthe ggaverage gg(mean) ggnumber ggof gghours ggspent ggon ggthe ggcomputer?
Round ggyour gganswer ggto ggone ggdecimal ggpoint.
B. ggcategorical gg- ggAnswer ggWhat ggtype ggof ggvariable ggis ggarea ggcode?
A. ggquantitative
B. ggcategorical
58%
(Numbers ggunder gg70 gg/ ggall ggthe ggnumbers) gg* gg100 gg- ggAnswer ggLook ggat ggthe
ggtable ggbelow
What ggpercentage ggof ggstudents ggearned gga gggrade ggof ggless ggthan gg70?
(Round ggpercentage ggto ggthe ggnearest ggwhole ggnumber.)
400 ggand gg478
(439 gg+- gg39) gg- ggAnswer ggThe ggdistribution ggof ggthe ggamount ggof ggmoney ggspent
ggby ggstudents ggon ggtextbooks ggin gga ggsemester ggis ggapproximately ggnormal ggin
ggshape ggwith gga ggmean ggof gg439 ggand gga ggstandard ggdeviation ggof gg39.
According ggto ggthe ggstandard ggdeviation ggrule, ggapproximately gg68% ggof ggthe
ggstudents ggspent ggbetween gg$ ggand gg$ ggon ggtextbooks ggin gga ggsemester.
95% gg- ggAnswer ggThe ggdistribution ggof ggIQ gg(Intelligence ggQuotient) ggis
ggapproximately ggnormal ggin ggshape ggwith gga ggmean ggof gg100 ggand gga ggstandard
ggdeviation ggof gg16.
According ggto ggthe ggstandard ggdeviation ggrule, gg___% ggof ggpeople gghave ggan ggIQ
ggbetween gg68 ggand gg132. ggDo ggnot gground.
16% gg- ggAnswer ggThe ggdistribution ggof ggIQ gg(Intelligence ggQuotient) ggis
ggapproximately ggnormal ggin ggshape ggwith gga ggmean ggof gg100 ggand gga ggstandard
ggdeviation ggof gg13.
According ggto ggthe ggstandard ggdeviation ggrule, ggonly gg___% ggof ggpeople gghave ggan
ggIQ ggover gg113.
$527
,467 gg+ gg3 gg* gg20 gg= gg527 gg- ggAnswer ggThe ggdistribution ggof ggthe ggamount ggof
ggmoney ggspent ggby ggstudents ggon ggtextbooks ggin gga ggsemester ggis ggapproximately
ggnormal ggin ggshape ggwith gga ggmean ggof: gg
μ gg= gg467 ggand gga ggstandard ggdeviation ggof: ggσ gg= gg20.
According ggto ggthe ggstandard ggdeviation ggrule, ggalmost gg0.15% ggof ggthe ggstudents
ggspent ggmore ggthan ggwhat ggamount ggof ggmoney ggon ggtextbooks ggin gga ggsemester?
A. ggStatstown gg- ggAnswer ggThe ggboxplots ggbelow ggdisplay ggannual ggincomes gg(in
ggthousands ggof ggdollars) ggof gghouseholds ggin ggtwo ggcities.
Which ggcity gghas gggreater ggvariability ggin ggincome?
A. ggStatstown
B. ggMedianville
C. ggBoth ggcities gghave ggthe ggsame ggvariability ggin ggincome.
D. ggIt ggis ggimpossible ggto ggtell ggfrom ggthe ggboxplots.
B. ggMs. ggBanana's ggclass gg- ggAnswer ggThe ggboxplots ggbelow ggshow ggthe ggnumber
ggof ggmarshmallows ggin gga ggbag, ggas ggestimated ggby ggstudents ggin ggtwo ggelementary
ggschool ggclasses.
Which ggclass gghas gga gggreater ggpercentage ggof ggestimates ggbetween gg50 ggand gg100
ggmarshmallows?
A. ggMs. ggApple's ggclass
B. ggMs. ggBanana's ggclass
C. ggBoth ggclasses gghave ggthe ggsame ggpercentage ggof ggestimates ggbetween gg50
ggand gg100.
D. ggIt ggis ggimpossible ggto ggtell ggfrom ggthe ggboxplots.
B. gg50-100 gg- ggAnswer ggBased ggon ggthe ggresults ggof gga ggnationwide ggstudy, ggthe
ggnumber ggof ggcontacts ggprogrammed gginto ggcell ggphones ggare ggsummarized ggon
ggthe ggfollowing ggboxplot:
Which gginterval ggcontains ggthe gggreatest ggamount ggof ggdata?
A. gg0-50
B. gg50-100
, C. gg75-125
D. gg125-175
gg
E. ggIt ggis ggimpossible ggto ggtell.
A. ggTinytown gg- ggAnswer ggThe ggboxplots ggbelow ggshow ggthe ggreal ggestate ggvalues
ggof ggsingle-family gghomes ggin ggtwo ggneighboring ggcities gg(in ggthousands ggof
ggdollars).
Which ggcity gghas gga gggreater ggpercentage ggof gghomes ggwith ggreal ggestate ggvalues
ggbetween gg55,000 ggand gg85,000?
A. ggTinytown
gg
B. ggBigBurg
gg
C. ggBoth ggcities gghave ggthe ggsame ggpercentage ggof gghomes ggwith ggreal ggestate
ggvalues ggbetween gg55,000 ggand gg85,000.
D. ggIt ggis ggimpossible ggto ggtell ggfrom ggthe ggboxplots.
E. ggPie ggchart gg- ggAnswer ggA ggstudent ggsurvey ggwas ggconducted ggat gga ggmajor
gguniversity, ggand ggdata ggwere ggcollected ggfrom gga ggrandom ggsample ggof gg750
ggundergraduate ggstudents. ggOne ggvariable ggthat ggwas ggrecorded ggfor ggeach
ggstudent ggwas ggthe ggstudent's gganswer ggto ggthe ggquestion gg"With ggwhom ggdo ggyou
ggfind ggit ggeasiest ggto ggmake ggfriends? ggOpposite ggsex/same ggsex/no ggdifference."
These ggdata ggwould ggbe ggbest ggdisplayed ggusing ggwhich ggof ggthe ggfollowing?
A. ggHistogram
B. ggIQR
C. ggStemplot
D. ggBoxplot
E. ggPie ggchart
D. ggQ3 gg- ggAnswer ggBased ggon ggthe ggresults ggof gga ggnationwide ggstudy, ggthe
ggnumber ggof ggcontacts ggprogrammed gginto ggcell ggphones ggare ggsummarized ggon
ggthe ggfollowing ggboxplot:
Choose ggthe ggcorrect gglabel ggfor ggthe ggpoint ggon ggthe ggboxplot ggrepresented ggby
ggthe ggquestion ggmark:
A. ggMinimum
B. ggQ1
C. ggMedian
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