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WGU C784-STATISTICS MOD 5 EXAM LATEST UPDATE
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WGU C784-STATISTICS MOD 5 EXAM LATEST UPDATE
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When jone jvariable jcauses jchange jin janother, jwe jcall jthe jfirst jvariable
jthe j___________________ jvariable*. j
The jaffected jvariable jis jcalled jthe j_______________ jvariable*. j j j j j j j
jANS: j✔- jWhen jone jvariable jcauses jchange jin janother, jwe jcall jthe jfirst
jvariable jthe jexplanatory jvariable*. j
The jaffected jvariable jis jcalled jthe jresponse jvariable*. j
In ja jrandomized jexperiment, jthe jresearcher jmanipulates jvalues jof jthe
jexplanatory jvariable jand jmeasures jthe jresulting jchanges jin jthe
jresponse jvariable. jThe jdifferent jvalues jof jthe jexplanatory jvariable jare
jcalled jtreatments. jAn jexperimental junit jis ja jsingle jobject jor jindividual
jto jbe jmeasured.
,A jtwo-way jtable, jalso jknown jas ja jtwo-way jfrequency jtable jor
jcontingency jtable, jis jused jto jshow jthe jrelationship jbetween jtwo
j______________________variables j( jC→C j); jthe jrows jshow jthe
jcategories jof jone jvariable, jand jthe jcolumns jshow jthe jcategories jof jthe
jother jvariable. j j j j j j j jANS: j✔- jcategorical jvariables j( jC→C j)
______________________. jThese jrepresent jthe jtotal jnumber jof
jinstances jthat jfall jin jboth jthe jcorresponding jrow jand jheader.
The jdata jin jthe jgreen jcells jshow j_______________________________.
jThese jare jequal jto jthe jsum jof jthe jnumber jof jindividuals jin jthe
jcorresponding jrow jor jcolumn. j j j j j j j jANS: j✔- jThe jcells jin jyellow jshow
jjoint jfrequencies*. jThese jrepresent jthe jtotal jnumber jof jinstances jthat
jfall jin jboth jthe jcorresponding jrow jand jheader. j
For jexample, jdata jin jthe j"Male" jrow jand j"With jAutism" jcolumn jcounts
jthe jnumber jof jmales jwith jautism.
The jdata jin jthe jgreen jcells jshow jmarginal jfrequencies*. jThese jare
jequal jto jthe jsum jof jthe jnumber jof jindividuals jin jthe jcorresponding jrow
jor jcolumn. jFor jexample, jdata jin jthe j"Totals" jcolumn jand j"Female" jrow
jshows jthe jtotal jnumber jof jfemales jin jthe jstudy. jIt jmay jbe jhelpful jto
, jremember jthat jmarginal jfrequencies jappear jin jthe jmargins jof jthe
jtable.
The jbottom, jright jcell j(in jboth jthe j"Totals" jcolumn jand jthe j"Totals"
jrow) jmeasures jthe jtotal jnumber jof jindividuals jin jthe jstudy.
The jrelationship jbetween jtwo jvariables jthat jare jboth jquantitative jcan
jbe jdisplayed jin ja j__________________________. j j j j j j j jANS: j✔-
jscatterplot;
As jwe've jseen jearlier, jevery jpoint jon ja jcoordinate jplane jcan jbe
jrepresented jby jan jordered jpair*, j( jx j, jy j). jHere, jthe jx j-value jis jtypically
jthe j_________________variable's jvalue jfor ja jpiece jof jdata, jand jthe jy j-
value jis jthe jcorresponding jvalue jfor jthe
j________________________variable. jA jsimple jway jto jremember jthis
jfact jis jthat jthe jterm j"explanatory" jhas jan j" jx j" jin jit. j j j j j j j jANS: j✔-
jexplanatory jvariable; jresponse jvariable
Side-by-side jbox jplots jare ja jgood jchoice jfor jtwo-variable jdata jwhere
jthe jexplanatory jvariable jis j____________ jdata jand jthe jresponse
jvariable jis j____________ jdata. j j j j j j j jANS: j✔- jCategorical j
Quantitative
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