For quantitative variables X and Y , which one of the following statements about r, the correlation coefficient, is FALSE? O A. Changing the unit of measure for X does not change the value of r. O B. When X and Y have a strong positive linear association then ~ is close to 1. O C. r is a useful measure of strength for linear relationships between X and Y O D. The correlation coefficient between X and Y is equal to the correlation coefficient between Y and X. O E. All of the above statements are TRUE