The denominator (bottom half) of the Pearson correlation coefficient includes the:
A) sum of the product of the deviations for each variable.
B) square root of the product of the two sum of squares.
C) difference between the sample means.
D) square root of the deviations for each variable.

Question

Quizplus · Accepted Answer

The denominator of the Pearson correlation coefficient includes the square root of the product of the two sum of squares. Specifically, it is the square root of the product of the sum of squares of X and the sum of squares of Y.

The Denominator (Bottom Half) of the Pearson Correlation Coefficient Includes