SOLUTION: Given the least squares regression line y^ = -2.88 + 1.77x, and a coefficient of determination of 0.81, the coefficient of correlation is?

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Question 335258: Given the least squares regression line y^ = -2.88 + 1.77x, and a coefficient of determination of 0.81, the coefficient of correlation is?
Answer by jrfrunner(365) About Me  (Show Source):
You can put this solution on YOUR website!
In simple regression, r%5E2 is the coefficient of determination and r is the coefficient of correlation.
While its a simple mathematical relationship between the two, their meanings are quite different.
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r%5E2=0.81, therefore r=sqrt%280.81%29=0.90
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NOTE: In multiple regresssion it is typical to use R%5E2 and R