The correlation between two variables is defined as
A) the covariance of those variables divided by the product of their standard deviations.
B) the covariance of those variables divided by the variance of X .
C) the covariance of those variables divided by the variance of Y .
D) the cross-product of all of the pairs of scores.

Question

Quizplus · Accepted Answer

The correlation between two variables is defined as the covariance of those variables divided by the product of their standard deviations. This formula gives us a standardized measure of the relationship between two variables, ranging from -1 (perfect negative correlation) to +1 (perfect positive correlation). Therefore, choice A is the correct answer.

The Correlation Between Two Variables Is Defined as