Question 3 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). The results of the regression were: y=ax+b a=-1. 011 b=28 . 82 r2=0. 749956 r=-0. 866 Use this to predict the number of situps a person who watches 4 hours of TV can do (to one decimal place) > Next Question MacBook Air