ABSTRACT
InChapter9,youlearnedhowto.computeaPearsonrandthebasics ofhowtointerpretit.Youlearnedthatrisexpressedonascalefrom -1.00through0.00to1.00.Onthesurface,aPearsonrlookslikeaproportionbecauseproportionsarealsoexpressedonascalefrom0.00to1.00. Forexample,arecentsurveyindicatedthat.50(aproportion)ofAmericansareopposedtoaffirmativeaction.Aproportionmaybeconvertedtoa percentagebymultiplyingby100.Thus,theproportion.50x100=50%. However,aPearsonrisnotaproportion;therefore,multiplyingitby100 doesnotyieldapercentageofanything.Forexample,aPearsonrof.50is notequivalentto50%.
