When are two variables said to covary?
A)when the two variables have different values under different circumstances
B)when the two variables have different variations under different circumstances
C)when variations in the value of one variable are synchronized with variations in the value of the other
D)when the pattern of variation of the two variables is highly dissimilar

Question

Quizplus · Accepted Answer

When two variables covary, it means that variations in the value of one variable are synchronized with variations in the value of the other. This is the only option that accurately describes the concept of covariance. Option A and D describe situations where the variables have different values or patterns, which is not the same as covariance. Option B is also incorrect because covariance refers to how the variables vary together, not the degree or amount of variation.

When Are Two Variables Said to Covary