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I know the components of R^{2}as in ESS, TSS, RSS.

I know cov(x,y) = [[itex]\sum[/itex](yi - ybar)(xi - xbar)]/n-1

But that's as far as I can go, I have come across lowercase r yet or the sample correlation and proofing how they all fit is a bit beyond me so if someone can provide some help that would be great thanks.

This is not homework.

Josh

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# R^2 Regression Proof

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