Question

How do you interpret the slope of a linear regression?

Answer 1

The slope of the linear regression is the value of the increment in Y when the increment in X is 1.

Explanation:

Let us take this equation :

`Y = 2X+0`

It means that, when I add 1 to the value of X, I have to add 2 to the value of Y (see the graph below).

graph{x*2+0[-2.996, 9.494, -0.946, 5.294]}