More on regression (K-A)

• Squared error of regression line (K-A)
• Proof (part 1) minimizing squared error to regression line (K-A)
• Proof (part 3) minimizing squared error to regression line (K-A)
• Proof (part 4) minimizing squared error to regression line (K-A)
• Regression line example (K-A)
• Second regression example (K-A)
• R-squared or coefficient of determination (K-A)
• Calculating R-squared (K-A)
• Covariance and the regression line (K-A)