Question: 79. Show that SSE Syy 1Sxy, which gives an alternative computational formula for SSE. 80. Suppose that x and y are positive

79. Show that SSE Syy ˆ

1Sxy, which gives an alternative computational formula for SSE.

80. Suppose that x and y are positive variables and that a sample of n pairs results in r 1. If the sample correlation coefficient is computed for the (x, y2

) pairs, will the resulting value also be approximately 1? Explain.

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