Why does the SSR have 1 degree of freedom in simple linear regression?
134109
Why does the degree of freedom of SSR equals 1 in simple linear regression
16644
Why does cancellation of dots $\frac{\partial \dot{\mathbf{r}}_i}{\partial \dot{q}_j} = \frac{\partial \mathbf{r}_i}{\partial q_j}$ work?
122562
Cross product term in linear regression why is it zero
10730
Proof that regression residual error is an unbiased estimate of error variance
118539
Is there an intuitive explanation why multicollinearity is a problem in linear regression?
39186
Why does linear regression use a cost function based on the vertical distance between the hypothesis and the input data point?
42345
Degrees of freedom in theoretical sample variance (for use in F-distribution)
33034
Why squared residuals instead of absolute residuals in OLS estimation?
45114
Why is a T distribution used for hypothesis testing a linear regression coefficient?
157430
In multiple regression, a coefficient gets opposite sign in subsample than in the full sample
98061
How to interpret coefficient standard errors in linear regression?
44278
$R^2$ for least absolute deviation regression
9356
Derivation of the formula for Ordinary Least Squares Linear Regression
132799
Constrained Regression in R: coefficients positive, sum to 1 and non-zero intercept
65207
Why is ANOVA equivalent to linear regression?
120879
Why is OLS estimator of AR(1) coefficient biased?
55479
Negative R squared contradicts ssa/sst?