STRAIGHTERLINE STATISTICS FINAL
EXAM WITH VERIFIED ANSWERS
anais ais aorganizing aher arock acollection aand aplaces aeach arock ain aone aof athree
acategories: asmall, amedium, aor alarge. athis aillustrates awhat alevel aof ameasurement?
a- acorrect aanswers a-ordinal
which aof athe afollowing ais aan aexample aof aa anominal avariable? a- acorrect aanswers
a-gender
what asort aof adata aare atemperature ameasurements? a- acorrect aanswers a-ratio
based aon athe agraph, awhich astatement abest adescribes athe arelationship abetween
adaily ahigh atemperatures aand athe anumber aof apeople agoing ato athe abeach? a-
acorrect aanswers a-it ais anegative alinear arelationship
the atable ashows athe anumber aof atrain atickets acarl apurchased ato aeach astation
aover athe alast amonth aand athe afare ato aeach astation. awhat awas athe aaverage acost
aper aride? a- acorrect aanswers a-$5.45
, the aoutcomes aobserves ain aan aexperiment aare: a2, a8, a3, a10, a4, aand a9. awhat ais
athe asample avariance? a- acorrect aanswers a-11.6
jason acollects ainformation aabout aannual afamily aincome afrom aeach astudent aat ahis
acollege. ahe acomputes aboth athe amean aand amedian afamily aincome aacross aall
astudents aand ais asurprised ato afind athat athe amean aincome ais ahigher athan athe
amedian aincome. awhat ais athe amost alikely areason afor athe adifference ain athe amean
aand athe amedian? a- acorrect aanswers a-the amean ais amore aaffected aby aa asmall
anumber aof aextreme avalues
an ainstructor aadministers aa atest ato aa aclass aof a30 astudents aand aobserves athat
athe ascores aare aclose ato anormally adistributed awith aa amean ascore aof a40 aand aa
astandard adeviation aof a10. awhat acan ayou aconclude afrom athese aresults? a- acorrect
aanswers a-the aaverage astudent ascored aat athe a40th apercentile
laura's aquiz ascores aduring athe asemester awere a87, a82, a90, a92, aand a84. awhat
awas aher amean ascore a- acorrect aanswers a-87
the atable alists athe apopulations aand arelative afrequencies aof acar aownership ain a4
aneighboring acities. awhich acity ahas athe amost acars? a- acorrect aanswers a-westville
in athe afigure ashown, asample aa aand asample ab ahave athe asame a- acorrect aanswers
a-median
the acontingency atable adescribes athe aliving aarrangements aof astudents aat aa asmall
acollege. awhat apercentage aof athe astudents aare awomen awho alive ain aoff-campus
ahousing? a- acorrect aanswers a-54
which aof athese acorrelation acoefficients ashows athe astrongest alinear arelationship
abetween a2 avariables a- acorrect aanswers a--0.31
what aconclusion acan abe adrawn afrom athe agraph aof aaverage adaily atemperature
aand ahot abeverage asales a- acorrect aanswers a-there ais aa anegative acorrelation
abetween aaverage adaily atemperature aand ahot abeverage asales
the acoefficient aof acorrelation ar ais aa ameasurement aof astatistical arelationships athat
aare a- acorrect aanswers a-linear
a abag acontains amarbles aof adifferent acolors a(red, ayellow, aand ablue) aand adifferent
asizes a(small aand alarge). athe aprobability aof apicking aa ablue amarble aout aof athe
abag ais a0.10 aand athe aprobability aof apicking aa alarge amarble ais a0.50. awhat ais athe
aprobability aof apicking aa alarge ablue amarble a- acorrect aanswers a-0.05
a aswimmer, asarah, ahopes ato acompete ain aan aupcoming ameet. athere aare a8 ateam
amembers aeligible afor athe abreaststroke aevent aat athe ameet, abut aonly a1 ateam
EXAM WITH VERIFIED ANSWERS
anais ais aorganizing aher arock acollection aand aplaces aeach arock ain aone aof athree
acategories: asmall, amedium, aor alarge. athis aillustrates awhat alevel aof ameasurement?
a- acorrect aanswers a-ordinal
which aof athe afollowing ais aan aexample aof aa anominal avariable? a- acorrect aanswers
a-gender
what asort aof adata aare atemperature ameasurements? a- acorrect aanswers a-ratio
based aon athe agraph, awhich astatement abest adescribes athe arelationship abetween
adaily ahigh atemperatures aand athe anumber aof apeople agoing ato athe abeach? a-
acorrect aanswers a-it ais anegative alinear arelationship
the atable ashows athe anumber aof atrain atickets acarl apurchased ato aeach astation
aover athe alast amonth aand athe afare ato aeach astation. awhat awas athe aaverage acost
aper aride? a- acorrect aanswers a-$5.45
, the aoutcomes aobserves ain aan aexperiment aare: a2, a8, a3, a10, a4, aand a9. awhat ais
athe asample avariance? a- acorrect aanswers a-11.6
jason acollects ainformation aabout aannual afamily aincome afrom aeach astudent aat ahis
acollege. ahe acomputes aboth athe amean aand amedian afamily aincome aacross aall
astudents aand ais asurprised ato afind athat athe amean aincome ais ahigher athan athe
amedian aincome. awhat ais athe amost alikely areason afor athe adifference ain athe amean
aand athe amedian? a- acorrect aanswers a-the amean ais amore aaffected aby aa asmall
anumber aof aextreme avalues
an ainstructor aadministers aa atest ato aa aclass aof a30 astudents aand aobserves athat
athe ascores aare aclose ato anormally adistributed awith aa amean ascore aof a40 aand aa
astandard adeviation aof a10. awhat acan ayou aconclude afrom athese aresults? a- acorrect
aanswers a-the aaverage astudent ascored aat athe a40th apercentile
laura's aquiz ascores aduring athe asemester awere a87, a82, a90, a92, aand a84. awhat
awas aher amean ascore a- acorrect aanswers a-87
the atable alists athe apopulations aand arelative afrequencies aof acar aownership ain a4
aneighboring acities. awhich acity ahas athe amost acars? a- acorrect aanswers a-westville
in athe afigure ashown, asample aa aand asample ab ahave athe asame a- acorrect aanswers
a-median
the acontingency atable adescribes athe aliving aarrangements aof astudents aat aa asmall
acollege. awhat apercentage aof athe astudents aare awomen awho alive ain aoff-campus
ahousing? a- acorrect aanswers a-54
which aof athese acorrelation acoefficients ashows athe astrongest alinear arelationship
abetween a2 avariables a- acorrect aanswers a--0.31
what aconclusion acan abe adrawn afrom athe agraph aof aaverage adaily atemperature
aand ahot abeverage asales a- acorrect aanswers a-there ais aa anegative acorrelation
abetween aaverage adaily atemperature aand ahot abeverage asales
the acoefficient aof acorrelation ar ais aa ameasurement aof astatistical arelationships athat
aare a- acorrect aanswers a-linear
a abag acontains amarbles aof adifferent acolors a(red, ayellow, aand ablue) aand adifferent
asizes a(small aand alarge). athe aprobability aof apicking aa ablue amarble aout aof athe
abag ais a0.10 aand athe aprobability aof apicking aa alarge amarble ais a0.50. awhat ais athe
aprobability aof apicking aa alarge ablue amarble a- acorrect aanswers a-0.05
a aswimmer, asarah, ahopes ato acompete ain aan aupcoming ameet. athere aare a8 ateam
amembers aeligible afor athe abreaststroke aevent aat athe ameet, abut aonly a1 ateam
