The r² statistic measures the proportion of variation in one variable that is explained by the other.

Question

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The r² statistic, also known as the coefficient of determination, measures the amount of variation in the dependent variable (Y) that is explained by the independent variable (X). It ranges from 0 to 1, where 1 indicates that all of the variation in Y is explained by X, and 0 indicates that none of the variation is explained by X. Therefore, r² does measure the proportion of variation in one variable that is explained by the other.

The R² Statistic Measures the Proportion of Variation in One