Regression equation than from the mean

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Reference no: EM131852632

1. Under what two circumstances is the prediction of Y from X better made from the regression equation than from the mean of the Y column corresponding to the particular value of X?

2. If r 1.00, what is the value of d 2 Y ? Why?

3. If r 1.00, what is the value of d 2 Y? Why?

Reference no: EM131852632

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