Why squared residuals instead of absolute residuals in OLS estimation?
8860
Why square the difference instead of taking the absolute value in standard deviation?
28984
Normality of dependent variable = normality of residuals?
20900
Regression without intercept: deriving $\hat{\beta}_1$ in least squares (no matrices)
75249
What are the relationships/differences between Bias, Variance and Residuals?
38471
Is it possible to interpret regression output omitting the intercept?
135975
Why would one suppress the intercept in linear regression?
116209
Variance is the squared difference - why not to the 3, or 4 instead?
88669
Estimation of unit-root AR(1) model with OLS
20835
Residuals correlated positively with response variable strongly in linear regression
156490
Residual standard error difference between optim and glm
125934
Minimize absolute values of errors instead of squares
42773
How to minimize residual sum of squares of an exponential fit?
118772
Is R-squared value appropriate for comparing models?
73434
Assumptions to derive OLS estimator
10967
Why is sum of squared residuals non-increasing when adding explanatory variable?
109535
Measures of residuals heteroscedasticity
62360
Errors and Residuals