For each of the following pairs of variables, determine whether the association is positive or negative, and

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For each of the following pairs of variables, determine whether the association is positive or negative, and explain why.

a. Would the association between outdoor temperature and consumption of heating oil be positive or negative? Explain.

b. The number of years of education a person has and the person’s income

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Elementary Statistics

ISBN: 9781259969454

3rd Edition

Authors: William Navidi, Barry Monk

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