In a regression problem the following pairs of (x, y) are given: (4, 1), (4, -1), (4, 0), (4, -2) and (4, 2). That indicates that:
A) the correlation coefficient is -1
B) the correlation coefficient is 0
C) the correlation coefficient is 1
D) the coefficient of determination is between -2 and 2
E) none of these

Question

Quizplus · Accepted Answer

Since all the x values are constant and there is no linear relationship between y and x, the correlation coefficient is 0.

In a Regression Problem the Following Pairs of (X, Y)