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

All the given pairs have the same x-coordinates but different y-coordinates. This indicates that there is no correlation between x and y, which means the correlation coefficient is 0. Therefore, option B is the correct answer. The coefficient of determination cannot be calculated as it requires knowing the regression line, which is not given in this problem.

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