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 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

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minus−0.82.

A. II and III

B. I and II

C. III and IV

D. I and IV

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