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grand_chat
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40
Example of a non-negative discrete distribution where the mean (or another moment) does not exist?
Sep 14, 2018
12
If $E(|X|)$ is finite, is $\lim_{n\to\infty} nP(|X|>n)=0$?
Oct 6, 2017
11
Contrasting covariance calculation using R, Matlab, Pandas, NumPy cov, NumPy linalg.svd
Feb 22, 2017
9
Biased Distribution described in "Think Stats"
Sep 16, 2017
9
Constructing example showing $\mathbb{E}(X^{-1})=(\mathbb{E}(X))^{-1}$
Sep 30, 2017
7
Inequality of first three moments for positive random variable
May 10, 2018
7
In hypothesis testing, why is $1-\beta$ called the "power of a test"?
Apr 28, 2018
7
Conceptual proof that conditional of a multivariate Gaussian is multivariate Gaussian
Mar 31, 2017
6
Why does the rank order of models differ for R squared and RMSE?
Apr 27, 2018
6
P(A|B) and P(A|C) known, what is P(A|BC)
Mar 30, 2018
Top network posts
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59
Density of sum of two independent uniform random variables on $[0,1]$
50
Intuition behind logarithm inequality: $1 - \frac1x \leq \log x \leq x-1$
27
Numerical Analysis: Why this function is giving Sage / WolframAlpha so much trouble to integrate?
22
Calculate the Cumulative Distribution Function (CDF) in Python
21
Probability that sum of independent uniform variables is less than 1