If the correlation between smoking and lung cancer is .50, smoking accounts for 50% of the variability in lung cancer.

Name: If the correlation between smoking and lung cancer is .50, smoking accounts for 50% of the variability in lung cancer.
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Quizplus · Accepted Answer

The correlation coefficient of .50, when squared (to get the coefficient of determination, R^2), indicates that smoking accounts for 25% of the variability in lung cancer, not 50%.

If the Correlation Between Smoking and Lung Cancer Is