Sample correlation between x and y equal 0.886. If a fit a linear regression line y=a+bx,...
Sample correlation between x and y equal 0.886. If a fit a linear regression line y=a+bx, how much variance in y is unexplained by x?
Homework Answers
Given:
r = 0.886
Coefficient of determination (r^2): 0.886^2 = 0.785
Therefore, 78.5% of variation of dependent variable y is explained by independent variable X.
And remaining 100-78.5= 21.5% of variation is unexplained by x.
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Sample correlation between x and y equal 0.886. If a fit a
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