Excel and Minitab print a second $R ^ { 2 }$ statistic, called the coefficient of determination adjusted for degrees of freedom, which has been adjusted to take into account the sample size and the number of independent variables.

Question

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The adjusted $R^2$ statistic accounts for the number of predictors in the model relative to the number of data points, providing a more accurate measure of model fit when multiple predictors are involved.

Excel and Minitab Print a Second R2R ^ { 2 }R2

Excel and Minitab Print a Second $R ^ { 2 }$