2.5 Scatter plots and Linear Regression

View the resources below for additional support.

Calculator instructions

1. Entering data into lists

2. Making the scatter plot

3. Getting the regression equation

Instructions to find the Error Margin (r)

After points have been plotted and linear regression line is in the graph follow the steps below to calculate r

Select VARS then 7:Statistics

Scroll right to EQ then select 7:r

Hit enter on the home screen and the error margin is displayed 

Scatter plot and linear regression Notes