Residuals in a linear model are independent but sum to zero; isn't it a contradiction?
62360
Errors and Residuals
47453
Why will ridge regression not shrink some coefficients to zero like lasso?
120879
Why is OLS estimator of AR(1) coefficient biased?
11124
Normality of residuals vs sample data; what about t-tests?
23868
Normality assumption in linear regression
122562
Cross product term in linear regression why is it zero
3845
Interpretation of R's lm() output
143460
Non-normality in residuals
20835
Residuals correlated positively with response variable strongly in linear regression
152646
OLS versus IV regression results
110894
Does the variance of a sum equal a double sum of covariances?
154994
Violation of linearity assumption in Logistic Regression
56500
Diagonal straight lines in residuals vs fitted values plot for multiple regression
109585
Why Normality assumption in linear regression
16519
Transformed data due to non-normal residuals - how to see if it actually improved the model?
85330
Why do we use residuals to test the assumptions on errors in regression?
146190
Question about the relationship between the variance of residuals and variances of the data points