Regression - Properties of OLS on Any Sample Data
3 important questions on Regression - Properties of OLS on Any Sample Data
What are the algebraic properties of OLS statistics?
(1) sample average OLS residuals zero
(2) sample covariance regressors and residuals zero
(3) (x,y) on regression line
What is the total sum of squares? How is it calculated? What do those variables mean?
What does the coefficient of determination (R-squared) mean?
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