The correlation coefficient is a measure of the strength of association between two traits. Correlation does not mean causation, however. Think of one or two variables (not necessarily phenotypes) that are correlated and are causally linked, and one or two variables that may be correlated but are not likely to be causally linked.

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The Answer of The correlation coefficient is a measure of the strength of association between two traits. Correlation does not mean causation, however. Think of one or two variables (not necessarily phenotypes) that are correlated and are causally linked, and one or two variables that may be correlated but are not likely to be causally linked.

The Correlation Coefficient Is a Measure of the Strength of Association