A numerical measure of linear association between two variables is the

A) variance.
B) covariance.
C) standard deviation.
D) coefficient of variation.

Linear Association

A relationship between two variables where a change in one variable is associated with a proportional change in the other variable.

Covariance

A measure of linear association between two variables. Positive values indicate a positive relationship; negative values indicate a negative relationship.

Variables

Elements, features, or factors that are capable of changing or varying across different conditions or within different individuals in a study.