Coefficient estimates from $(X'X)^{-1}, X'y$ and $\widehat{u'}\widehat{u}$
86672
How are the standard errors of coefficients calculated in a regression?
84597
Derivative of $(1-x)^{-2}$
125680
Show that $(1+u) \log (1+u) - u \ge \frac{u^2}{2(1+u/3)} $
42606
Orthogonality for Binomial Coefficients
89422
Upper bound on complex integral of real-valued function, estimation lemma too loose
76853
Interpretation of $\mathbf{y}^T(\mathbf{I}-\mathbf{H})\mathbf{y}$ in OLS
16713
Product of an exponential function of IDD variables
35867
Squaring sides of an inequality
108560
Proof of a Gaussian Integral property
85818
$E(|X-Y|)$ for $X$, $Y$ i.i.d and uniform on $[0,1]$
64856
Finding $E(X\mid X>Y)$ when $X,Y$ are i.i.d $U(0,1)$
74596
Coefficient growth in the power series $\sum u_n z^n = e^{1/(1-z)}$?
32122
Find the coefficient of the term $x^2$ in $\left(x+\frac 2x\right)^{4}$
128361
The kernel and range of the powers of a self-adjoint operator
122714
Regression coefficient greater than 1: is it possible?
20900
Regression without intercept: deriving $\hat{\beta}_1$ in least squares (no matrices)
118411
Computing the coefficient in a large polynomial