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

A) 81%
B) 90%
C) 86%
D) 85%
E) about 16%

Coefficient Of Determination

A statistical measure, often denoted as R², that represents the proportion of the variance for a dependent variable that's explained by an independent variable or variables in a regression model.

Independent Variables

Elements in research or a scenario that are altered or sorted to explore their influence on response variables.

Regression Equation

An equation that expresses the linear relationship between one or more independent variables and a dependent variable.