List questions from expectation

Published on 24 Mar 2026 - 23:44

1.6k

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How to find $E(X|X\leq c)$?

Published on 27 Mar 2018 - 7:04

68

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Explanation needed for the following steps (is my step right)

Published on 27 Mar 2018 - 8:06

237

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Simple examples and explanation needed for understanding conditional expectation

Published on 28 Mar 2018 - 5:35

49

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Can we use uncorrelated to prove independent?

Published on 24 Mar 2026 - 23:46

113

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Payley-Zygmund Inequality Application $Pr\left(|\sum_{i=1}^m y_i x_i | > \frac 1 2 \sqrt {\sum_{i=1}^m {y_i}^2}\right) \ge K$

Published on 28 Mar 2018 - 9:32

35

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Prove $(c-s)*P (Y \ge s) \ge EY − s$ for a random variable Y with y ∈ [0, c]

Published on 28 Mar 2018 - 11:52

391

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Find expectation/variance of Random vector with uniform distribution on the cube ${[- \sqrt 3, \sqrt3]}^m$

Published on 28 Mar 2018 - 16:56

284

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Memorylessness of coin flips

Published on 28 Mar 2018 - 17:28

69

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counter example for $\mathbb{E}[\log(x)] <\mathbb{E}[\log(y)]$ when $\mathbb{E}[x]< \mathbb{E}[y]$ and vice versa

Published on 25 Mar 2026 - 16:39

46

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Why we can not prove the following by use of integration by parts in probability theory?

Published on 29 Mar 2018 - 0:28

189

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proving an expectation limit of random variable truncation

Published on 29 Mar 2018 - 5:26

425

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Confusion about Negative binomial distribution.

Published on 22 Mar 2026 - 17:22

192

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Expectation of the distance difference.

Published on 29 Mar 2018 - 9:42

317

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Maximizing expectation integral given PDF inequality

Published on 25 Mar 2026 - 2:57

List Question

where's the error of this calculation?

How to find $E(X|X\leq c)$?

Explanation needed for the following steps (is my step right)

Simple examples and explanation needed for understanding conditional expectation

Can we use uncorrelated to prove independent?

Payley-Zygmund Inequality Application $Pr\left(|\sum_{i=1}^m y_i x_i | > \frac 1 2 \sqrt {\sum_{i=1}^m {y_i}^2}\right) \ge K$

Prove $(c-s)*P (Y \ge s) \ge EY − s$ for a random variable Y with y ∈ [0, c]

Find expectation/variance of Random vector with uniform distribution on the cube ${[- \sqrt 3, \sqrt3]}^m$

Memorylessness of coin flips

counter example for $\mathbb{E}[\log(x)] <\mathbb{E}[\log(y)]$ when $\mathbb{E}[x]< \mathbb{E}[y]$ and vice versa

Why we can not prove the following by use of integration by parts in probability theory?

proving an expectation limit of random variable truncation

Confusion about Negative binomial distribution.

Expectation of the distance difference.

Maximizing expectation integral given PDF inequality

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