MeasuringtheheightofaYellowMerantiisverydifficultbecausethesetreesgrowtoheightsover 300 feet. In 2016, a group of Yellow Meranti in Sabah's Danum Valley was announcedas the tallest tropical trees in the world. People familiar with these trees understand that theheightofaYellowMerantiisrelatedtoothercharacteristicsofthetree,includingthediameterof the tree at the breast height of a person (in inches) and the thickness of the bark of thetree(ininches).ThefileYellowMeranticontainstheheight,diameteratbreastheightofaperson, andbark thickness forasampleof 40Yellow Merantitrees.

a.StatethesinglelinearregressionmodelswheretheheightofYellowMerantiistreatedasthe responseordependentvariablewhile:

i.thediameterofthetreeatthebreastheightofaperson(ininches)isthesoleexplanatoryorindependentvariable.

(1 Marks)

ANSWER:

ii.thethicknessofthebarkofthetree(ininches)isthesoleexplanatoryorindependentvariable.