A regression was run to determine if there is a relationship between hours of TV watched per day (x) and number of situps a person can do (y)Use this to predict the number of situps a person who watches 12.5 hours of TV can do (to one decimal place)

The results of the regression were: y=ax+b a=-1. 139 b-36.45 4-0.4096 r=-0. 64