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 2y=123+3.85x1+2.01x2, 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 64 inches tall and has 18% body fat.

The predicted total body weight for a female athlete who is 64 inches tall and has 18% body fat is .... pounds. (Round to the nearest tenth as needed.)

Explanation / Answer

y^ = -123+3.85x1 + 2.01x2

We are given,

x1 = 64

x2 = 18%

y^ = -123+(3.85*64) +(2.01*18) = 159.6

Answer: 159.6

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