More on regression

This is a more advanced collection of videos that goes into some more advanced topics and proofs in least-squares regression.

Squared error of regression line

Proof (part 1) minimizing squared error to regression line

Proof (part 2) minimizing squared error to regression line

Proof (part 3) minimizing squared error to regression line

Proof (part 4) minimizing squared error to regression line

Regression line example

Second regression example

Calculating R-squared

Covariance and the regression line