The correlation between two variables is a measure of the degree to which
A) points cluster together around some best-fitting straight line.
B) differences in one variable can be predicted from differences in the other variable.
C) one variable varies with the other variable.
D) all of the above

Question

Quizplus · Accepted Answer

The correlation between two variables is a measure of the degree to which one variable varies with the other variable. It is also a measure of how tightly points cluster together around some best-fitting straight line, which can be used to predict differences in one variable from differences in the other variable. Therefore, all of the above options are correct.

The Correlation Between Two Variables Is a Measure of the Degree