Suppose *r* = -1. Can you explain why a one-SD increase in *x* is matched by a

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Suppose *r* = -1. Can you explain why a one-SD increase in *x* is matched by a one-SD decrease in *y*?

The answers to these exercises are on pp. A59-60. PL968

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Statistics

ISBN: 9780393522105

4th Edition

Authors: David Freedman, Robert Pisani, Roger Purves

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