Posted by **John** on Monday, November 12, 2012 at 9:26am.

Suppose a study finds that the correlation coefficient relating family income and SAT scores is r = +0.98. Which of the following are proper conclusions?

I. Poverty causes low SAT scores

II. Wealth causes high SAT scores

III. There is a very strong association between family income and SAT scores

I only

II only

III only

I and II only

II and III only

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