Regression Line

How do you calculate a regression line for a set of data?

You can go to STAT:CALC: 8:linreg(a+bx) and make sure to store the function in y=
To store the function in y=, do: vars:Y-VARS:function:Y1
Then click calculate and it’ll be stored in your y=

1 Like

y = mx + b

m = r*(Sy/Sx)
Find b by plugging in (Xbar, Ybar)

1 Like

where do I plug in Xbar, Ybar?

You know how when you are trying to find the equation of any line and you already know the slope you plug in a point for x and y and solve for b?

Same thing here. Plug in Xbar for x and ybar for y and solve for b.

Ohh okay, thank you

Fiveable Logo

2550 north lake drive
suite 2
milwaukee, wi 53211



about for students for parents for teachers for schools & districts content team privacy contact


🥇 2020 Fiveable Olympics study plans upcoming events trivia hypertyper resources cram passes


community tiktok discord twitter instagram facebook careers

*ap® and advanced placement® are registered trademarks of the college board, which was not involved in the production of, and does not endorse, this product.

© fiveable 2020 | all rights reserved.