Which one of the following terms is a measure of the tendency of two things to move or vary together?
A)variance
B)squared deviation
C)standard deviation
D)alpha
E)covariance

Question

Quizplus · Accepted Answer

Covariance measures the tendency of two variables to move together in the same direction (positive covariance) or in opposite directions (negative covariance). A high positive covariance indicates that when one variable is above its mean, the other variable tends to be above its mean as well. A high negative covariance indicates that when one variable is above its mean, the other variable tends to be below its mean.

Which One of the Following Terms Is a Measure of the Tendency