Khan Academy
Khan Academy: Proof (Pt 2) Minimizing Squared Error to Regression Line
Video is the third of five related videos about deriving the formula for the least squares regression line. This video continues the algebraic manipulation to start deriving the formula by changing the notation to means instead of...
Khan Academy
Khan Academy: Proof (Part 1) Minimizing Squared Error to Regression Line
Video is the second of five related videos about deriving the formula for the least squares regression line. This video goes through the algebraic manipulation required at the begining of deriving the formula. [10:35]
Khan Academy
Khan Academy: Statistics: Squared Error of Regression Line
Video is the first of five related videos about deriving the formula for the least squares regression line. This first video simply shows what the least squares regression line is and gives a basic illustration and generalized formula...