25 If independent variables that were uncorrelated with the

25.       If independent variables that were uncorrelated with the dependent variable were added to the regression equation, the coefficient of multiple determination would ___________, while the adjusted coefficient of determination would ________________ .

a.         decrease, increase

b.         decrease, remain the same

c.         remain the same, fall

d.         increase, decrease

e.         increase, increase

Solution

COD always increases on adding uselses variables, wheresa adjusted R-sqaure decreases because of penalty adjustment .