A multiple regression equation includes 5 predictor variables, and the coefficient of multiple determination is 0.7921. The percentage of the variation in y that is explained by the regression equation is 89%.

Question

Quizplus · Accepted Answer

The percentage of the variation in y that is explained by the regression equation is actually 79.21%, not 89%. This is because the coefficient of multiple determination (R squared) represents the proportion of variability in the dependent variable explained by all the predictor variables together.

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