Which of the following is the best interpretation of the coefficient of determination r2?

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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The arm span and foot length were both measured (in centimeters) for each of 20 students in a biology class. The
computer output displays the regression analysis.
Predictor
Coef SE Coef
t-ratio
Constant
-7.611
2.567
2.965
0.046
Arm span
0.186
0.035
5.377
0.000
S = 1.61
R-Sq = 63.0%
R-Sq (Adj)
= 64.9%
Which of the following is the best interpretation of the coefficient of determination r2?
O About 37% of the variation in arm span is accounted for by the linear relationship formed with the foot length.
About 65% of the variation in foot length is accounted for by the linear relationship formed with the arm span.
About 63% of the variation in arm span is accounted for by the linear relationship formed with the foot length.
About 63% of the variation in foot length is accounted for by the linear relationship formed with the arm span.
Transcribed Image Text:The arm span and foot length were both measured (in centimeters) for each of 20 students in a biology class. The computer output displays the regression analysis. Predictor Coef SE Coef t-ratio Constant -7.611 2.567 2.965 0.046 Arm span 0.186 0.035 5.377 0.000 S = 1.61 R-Sq = 63.0% R-Sq (Adj) = 64.9% Which of the following is the best interpretation of the coefficient of determination r2? O About 37% of the variation in arm span is accounted for by the linear relationship formed with the foot length. About 65% of the variation in foot length is accounted for by the linear relationship formed with the arm span. About 63% of the variation in arm span is accounted for by the linear relationship formed with the foot length. About 63% of the variation in foot length is accounted for by the linear relationship formed with the arm span.
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