Which of the following statements concerning the linear correlation coefficient are​ true?   ​I: If the linear correlation coefficient for two variables is​ zero, then there is no relationship between...

​I: If the linear correlation coefficient for two variables is​ zero, then there is no relationship between the variables.

​II: If the slope of the regression line is​ negative, then the linear correlation coefficient is negative.

​III: The value of the linear correlation coefficient always lies

between −1 and 1.

​IV: A linear correlation coefficient of 0.62 suggests a stronger linear relationship than a linear correlation coefficient of

minus−0.82.

A.

II and III

B.

I and II

C.

III and IV

D.

I and IV