The equation used to predict the total body weight (in pounds) of a female athle

Question

The equation used to predict the total body weight (in pounds) of a female athlete at a certain school is Modifying Above y with caret equals -122 + 3.63x1 + 2.33x2, 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 61 inches tall and has 20% body fat.

The predicted total body weight for a female athlete who is 61 inches tall and has 20 % body fat is ?? pounds. (Round to the nearest tenth as needed.)

Explanation / Answer

The multiple regression equation given is:

y = -122 + 3.63x1 + 2.33x2

Given values:

x1 = 61, x2 = 20

Putting these values in the above equation we get:

y = -122 + 3.63*61 + 2.33*20

Solving this we get:

y = 146.03 pounds

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