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V. Vancak
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Valentin Vancak, Ph.D. in Statistics

Selected answers on math.stackexchange.com:

Why do bell curves appear everywhere?

Show t-distribution is close to normal distribution when df is large

Derivation of Closed Form solution of Regularized Linear Regression

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View all questions and answers
27
Why do bell curves appear everywhere?
Aug 2, 2017
11
Finding the Fisher's Information in a normal distribution with known $\mu$ and unknown $\sigma^{2}$
Apr 14, 2018
9
Show/Prove that $F_{\alpha,n,m} =1/F_{1-\alpha,m,n}$
Jul 26, 2017
8
Show t-distribution is close to normal distribution when df is large
Apr 22, 2017
7
Explain about the Correlation of Error Terms in Linear Regression Models
Oct 16, 2018
7
Expectation and orthogonal projection
Feb 17, 2017
6
How to find the sufficient statistics for the shifted exponential distribution $f_{\theta, k}(y) = \theta e^{-\theta (y - k)}, y \ge k, \theta \gt 0$?
Sep 17, 2017
6
Proving $\lim_{x\to1}(x^3+5x^2-2)=4$ using the $\epsilon$-$\delta$ definition of a limit
Jul 26, 2016
6
Conditional expectation of a joint normal distribution
Mar 2, 2017
5
How to prove that if $E(X^2) < \infty$ then $E(X) < \infty$?
Dec 23, 2018