In a multiple regression analysis,the current model has three independent variables.The analyst decides to add another (fourth)independent variable while retaining the other three independent variables.As a result of this addition,the value of explained variation will ____________ decrease.
A)Always
B)Sometimes
C)Never

Question

Quizplus · Accepted Answer

Adding an additional independent variable to a multiple regression model will never decrease the explained variation (R-squared); it will either increase or remain the same.

In a Multiple Regression Analysis,the Current Model Has Three Independent