The correlation coefficient
A)lies between zero and one.
B)is a measure of linear association.
C)is close to one if X causes Y.
D)takes on a high value if you have a strong nonlinear relationship.

Question

Quizplus · Accepted Answer

The correlation coefficient is a statistical measure of linear association between two variables, which means it measures the strength and direction of the linear relationship between them. Therefore, option B is correct. Option A is partially correct, as the correlation coefficient always lies between -1 and 1 (not zero and one). Option C is incorrect, as correlation does not imply causation. Option D is incorrect, as the correlation coefficient measures the strength of the linear relationship, not nonlinear relationships.

The Correlation Coefficient