please refer to attachment

Which of the following statements about the Pearson correlation coefficient between variables X and Y is true? O None of these. O Changing the units of X and Y will not affect the value of r. O The farther away r is from zero, the weaker the linear relationship between X and Y. O If r = 0, then knowing X helps when predicting Y. O Taking cor(Y,X) instead of cor(X,Y) will reverse the sign of r