Econometrics Lecture: OLS Unbiased Proof

[@sumitparanjape2758]

You are the first one to explain clearly the last last step, why expectation operator moves inside the summation of (Xi-Xbar)*ui. Thank you so much.

[@שלוםשליו]

Simple, clear and ingenious! Thank you so much!

[@andreamengoli4656]

Good way to deal with things :) in a slow, clear and in depth way!

[@bacillusrex]

Self bookmark 10:05. Thanks for this! 25:50 27:30 29:11

[@andreamengoli4656]

Good Job!