Lecture 19

• In lecture 19, we spent the whole time for the linear regression and ‘lm’ command in R. Do not forget that the regression is the conditional expectation that minimizes the expected value of error squares. The expected value of error squares is approximated by RSS using the sample mean. Your textbook uses this interpretation to define the least squares.

• Homework 6 is on Canvas, and due at 11:59 pm March 1.