Suppose the correlation coefficient between two variables X

Suppose the correlation coefficient between two variables, X and Y, is found to be r = -0.95. Which of the following is most appropriate?

An increase in Y causes an increase X

As X increases, Y increases.

As X increases, Y decreases

An increase in X causes a decrease in Y

A.

An increase in Y causes an increase X

B.

As X increases, Y increases.

C.

As X increases, Y decreases

D.

An increase in X causes a decrease in Y

Solution

As X increases, Y decreases

because relationship is negative. Also, correlation does not imply \"cause-effect\" relation

C.

As X increases, Y decreases

Suppose the correlation coefficient between two variables, X and Y, is found to be r = -0.95. Which of the following is most appropriate? An increase in Y cause

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