Which of the following are measures of the linear relationship between two variables,but not the strength?

A) The covariance
B) The coefficient of correlation
C) The variance
D) Both a and b

Covariance

A measure of the joint variability of two random variables, giving insight into how the variables change together.

Coefficient Of Correlation

A numerical measure that indicates the strength and direction of a linear relationship between two variables, ranging from -1 to 1.

Linear Relationship

A type of correlation where the change in one variable is directly proportional to the change in another variable.