In a regression problem the following pairs of (x,y)are given: (3,1), (3,-1), (3,0), (3,-2)and (3,2).That indicates that the:
A) correlation coefficient is -1/2.
B) correlation coefficient is 0.
C) correlation coefficient is 1.
D) coefficient of determination is 3.

Question

Quizplus · Accepted Answer

Since all the x values are the same and the corresponding y values are completely different, there is no linear relationship between x and y. Therefore, the correlation coefficient is 0. The coefficient of determination cannot be calculated without first finding the correlation coefficient.

In a Regression Problem the Following Pairs of (X,y)are Given