Autograph, software for teaching calculus, coordinate geometry, statistics and probability is essential to make this task work.
The goal is for students to understand how the regression line is chosen.
Autograph has a wonderful built-in facility for showing the squares of the residuals -
once seen, never forgotten.
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This is a lovely activity to get students to do when you are studying correlation and regression at A-level S1. This would really help students to consolidate their understanding of residuals and regression lines. You could make this investigation into a whole lesson and really allow the students to go into this in detail. Thank you for sharing.
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