WGU C784-Statistics Mod 5 Exam Questions with Correct Answers 2025

WGU C784-Statistics Mod 5 Exam Questions
with Correct Answers 2025
Whenhonehvariablehcauseshchangehinhanother,hwehcallhthehfirsthvariablehtheh___________________hv
ariable*.h



Thehaffectedhvariablehishcalledhtheh_______________hvariable*.h-hCorrecthAnswers-
Whenhonehvariablehcauseshchangehinhanother,hwehcallhthehfirsthvariablehthehexplanatoryhvariable*.h



Thehaffectedhvariablehishcalledhthehresponsehvariable*.h



Inhahrandomizedhexperiment,hthehresearcherhmanipulateshvalueshofhthehexplanatoryhvariablehandhme
asureshthehresultinghchangeshinhthehresponsehvariable.hThehdifferenthvalueshofhthehexplanatoryhvaria
bleharehcalledhtreatments.hAnhexperimentalhunithishahsinglehobjecthorhindividualhtohbehmeasured.



Ahtwo-wayhtable,halsohknownhashahtwo-
wayhfrequencyhtablehorhcontingencyhtable,hishusedhtohshowhthehrelationshiphbetweenhtwoh________
______________variablesh(hC→Ch);hthehrowshshowhthehcategorieshofhonehvariable,handhthehcolumnsh
showhthehcategorieshofhthehotherhvariable.h-hCorrecthAnswers-categoricalhvariablesh(hC→Ch)



______________________.hThesehrepresenththehtotalhnumberhofhinstanceshthathfallhinhbothhthehcorr
espondinghrowhandhheader.



Thehdatahinhthehgreenhcellshshowh_______________________________.hTheseharehequalhtohthehsum
hofhthehnumberhofhindividualshinhthehcorrespondinghrowhorhcolumn.h-hCorrecthAnswers-
Thehcellshinhyellowhshowhjointhfrequencies*.hThesehrepresenththehtotalhnumberhofhinstanceshthathfall
hinhbothhthehcorrespondinghrowhandhheader.h




Forhexample,hdatahinhtheh"Male"hrowhandh"WithhAutism"hcolumnhcountshthehnumberhofhmaleshwithh
autism.

, Thehdatahinhthehgreenhcellshshowhmarginalhfrequencies*.hTheseharehequalhtohthehsumhofhthehnumbe
rhofhindividualshinhthehcorrespondinghrowhorhcolumn.hForhexample,hdatahinhtheh"Totals"hcolumnhandh
"Female"hrowhshowshthehtotalhnumberhofhfemaleshinhthehstudy.hIthmayhbehhelpfulhtohrememberhthat
hmarginalhfrequencieshappearhinhthehmarginshofhthehtable.




Thehbottom,hrighthcellh(inhbothhtheh"Totals"hcolumnhandhtheh"Totals"hrow)hmeasureshthehtotalhnumb
erhofhindividualshinhthehstudy.



Thehrelationshiphbetweenhtwohvariableshthatharehbothhquantitativehcanhbehdisplayedhinhah_________
_________________.h-hCorrecthAnswers-scatterplot;



Ashwe'vehseenhearlier,heveryhpointhonhahcoordinatehplanehcanhbehrepresentedhbyhanhorderedhpair*,h
(hxh,hyh).hHere,hthehxh-
valuehishtypicallyhtheh_________________variable'shvaluehforhahpiecehofhdata,handhthehyh-
valuehishthehcorrespondinghvaluehforhtheh________________________variable.hAhsimplehwayhtohrem
emberhthishfacthishthaththehtermh"explanatory"hhashanh"hxh"hinhit.h-hCorrecthAnswers-
explanatoryhvariable;hresponsehvariable



Side-by-sidehboxhplotsharehahgoodhchoicehforhtwo-
variablehdatahwherehthehexplanatoryhvariablehish____________hdatahandhthehresponsehvariablehish__
__________hdata.h-hCorrecthAnswers-Categoricalh



Quantitative



Whichhvariable,hexplanatoryhorhresponse,hishdisplayedhonhthehxh-axishonhside-by-sidehboxplots?h-
hCorrecthAnswers-Side-by-
sidehboxplotshcanhbehhorizontalhorhvertical,hsoheitherhvariableh(explanatoryhorhresponse)hcanhbehdispl
ayedhonhthehxh-axis.



Ahscatterplothishahgoodhchoicehtohdisplayhtwo-variablehdatahthatharehbothh__________hvariables.h-
hCorrecthAnswers-Quantitative




Thehrelationshiphbetweenhthehxh-variablehandhthehyh-variablehishcalledh_____________.h-
hCorrecthAnswers-Correlation