The formula for the point-biserial correlation coefficient was derived from the formula for the Pearson correlation coefficient.

Name: The formula for the point-biserial correlation coefficient was derived from the formula for the Pearson correlation coefficient.
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The point-biserial correlation coefficient formula is a modification of the Pearson correlation coefficient formula that is used for two variables, one of which is dichotomous (binary).

The Formula for the Point-Biserial Correlation Coefficient Was Derived from the Formula