A correlation coefficient of 094 between two quantitative va

A correlation coefficient of 0.94 between two quantitative variables A and B indicates that
A. As A increases, B tends to increase.
B. Changes in A cause changes in B.
C. As A increases, B tends to decrease.
D. There is a very weak association between A and B, and change in A will not affect B.

Solution

. As A increases, B tends to increase. because correlation is positive.

(b) is wrong because causality is not implied. (C) is wrong. (D) is wrong because 0.94 is close to 1, and implies a strong relationship.