What element of the regression equation provides information about the direction of the relationship?
A) X
B) Y
C) a
D) b

Question

Quizplus · Accepted Answer

The coefficient b in the regression equation represents the slope of the line, and therefore provides information about the direction of the relationship between the two variables. A positive value of b indicates a direct relationship (as X increases, Y increases) while a negative value of b indicates an inverse relationship (as X increases, Y decreases).

What Element of the Regression Equation Provides Information About the Direction