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I'm working on regression. Here's the question.

If r = .77, what proportion of the change in Y is due to the change in X?

And:

If r = -.68, how much of the change in y is not related to the change in X?

I guess I was in orbit or something the day we covered this. Thanks for any help anybody can give me. Many, many thanks.

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# Homework Help: Statistics help, please.

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