The equation used to predict the total body weight​ (in pounds) of a female athlete at a certain school is ModifyingAbove y with caret equals negative 121 plus 3.38 x 1 plus 1.48 x 2​, where x1 is the female​ athlete's height​ (in inches) and x2 is the female​ athlete's percent body​ fat, measured as x2​%. Use the multiple regression equation to predict the total body weight for a female athlete who is 68 inches tall and has 21​% body fat.
To predict the total body weight for a female athlete who is 68 inches tall and has 21​% body​ fat, substitute the given value for each independent variable into the multiple regression equation.
Substitute the values for x1 and x2 into the multiple regression equation.