A multiple regression equation includes 5 independent variables, and the coefficient of determination is 0.81. Then, the percentage of the variation in y that is explained by the regression equation is 90%.

Question

Quizplus · Accepted Answer

The coefficient of determination (R-squared) represents the percentage of the variation in the dependent variable (y) that is explained by the independent variables in the regression equation. Therefore, if the R-squared is 0.81, the percentage of variation in y explained by the equation is 81%, not 90%.

A Multiple Regression Equation Includes 5 Independent Variables, and the Coefficient