Multiple Choice
Which of the following describes Pearson's r?
A) It is the average amount by which the scores in two sets of data differ from each other.
B) It is the cross-product of two variances.
C) It is average difference between X and Y, divided by N.
D) It is the mean cross-product of two sets of z scores.
Correct Answer:

Verified
Correct Answer:
Verified
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