The strength of the linear relationship between two interval variables can be measured by the:

A) coefficient of variation.
B) coefficient of correlation.
C) slope of the regression line.
D) Y-intercept.

Coefficient of Correlation

A numerical measure that denotes the strength and direction of a linear relationship between two variables.

Linear Relationship

describes a direct proportionality between two variables, meaning as one variable increases or decreases, the other does so in a constant rate.

Interval Variables

Variables measured along a scale in which each point is placed at an exact distance from each other, like temperature in Celsius.