r-Squared Question

I am trying to undertand r-squared (the coefficient of determination)
of regression lines. If r, which is squared to obtain r-squared, is
the correlation between the predicted Y and the observed Y, then
doesn't that mean that any regression line whose predicted Y is a
perfect linear function of the observed Y has an r (and thus r-squared)
of 1?


Thanks,
Will


Keywords: r2 r^2 r**2 r-square r-squared rsquare rsquared

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Relevant Pages

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