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Number of lottery participation needed to win a certain amount

score 66 · Answer 1 · 2026-04-11 11:14:45

66

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Number of lottery participation needed to win a certain amount

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score 32 · Answer 2 · 2026-03-26 09:45:54

32

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score 32 · Answer 3 · 2026-04-17 03:31:27

32

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Are there existing random graph models that allow controlling assortativity?

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score 96 · Answer 4 · 2026-04-10 19:07:03

96

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score 43 · Answer 5 · 2026-04-09 06:42:43

43

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score 42 · Answer 6 · 2026-04-13 17:33:37

42

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score 54 · Answer 7 · 2026-04-10 17:50:54

54

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score 63 · Answer 8 · 2026-04-10 17:06:18

63

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score 22 · Answer 9 · 2026-04-13 13:22:52

22

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Using summations to find expected values

Published on 13 Apr 2026 - 13:22

score 44 · Answer 10 · 2026-04-15 16:02:37

44

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Confirmation for $E(X) = \int_0^b(1-F(x)) \ dx$ where $F(x)$ denotes CDF of random variable X with range $[0, b]$.

Published on 15 Apr 2026 - 16:02

score 41 · Answer 11 · 2026-04-16 00:48:05

41

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What is $E[Y^2]$ where $Y = \min (X_1, X_2)$ and $X_1, X_2 \sim U(0, 1)$

Published on 16 Apr 2026 - 0:48

score 70 · Answer 12 · 2026-04-15 17:43:03

70

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Necessary and sufficient conditions for $\sum_{n = 1}^\infty \mathbb{E}\vert X_n \vert < \infty$ with $X_n \sim \mathcal{N}(\mu_n, \sigma_n^2)$

Published on 15 Apr 2026 - 17:43

score 22 · Answer 13 · 2026-04-12 22:09:51

22

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A random length sum of random variables with finite mean has finite mean

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score 53 · Answer 14 · 2026-04-15 10:13:06

53

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Intuitions for $\mathbb{E}|\sum_{i=1}^n\mathbf{X}_i|= n{n-1\choose (n-1)/2}2^{1-n}$

Published on 15 Apr 2026 - 10:13

score 31 · Answer 15 · 2026-04-13 17:02:33

31

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Variance of a random recursive relation

Published on 13 Apr 2026 - 17:02

List Question

Number of lottery participation needed to win a certain amount

Understanding an expectation formula

Are there existing random graph models that allow controlling assortativity?

Expected value for both continuous and discrete variables in measure theory

problem in calculation in 'Deep Learning' book

Question about expected value of a variable defined in parts

Expected value of multivariate normal with single integration

Calculations of expected value and improper integral

Using summations to find expected values

Confirmation for $E(X) = \int_0^b(1-F(x)) \ dx$ where $F(x)$ denotes CDF of random variable X with range $[0, b]$.

What is $E[Y^2]$ where $Y = \min (X_1, X_2)$ and $X_1, X_2 \sim U(0, 1)$

Necessary and sufficient conditions for $\sum_{n = 1}^\infty \mathbb{E}\vert X_n \vert < \infty$ with $X_n \sim \mathcal{N}(\mu_n, \sigma_n^2)$

A random length sum of random variables with finite mean has finite mean

Intuitions for $\mathbb{E}|\sum_{i=1}^n\mathbf{X}_i|= n{n-1\choose (n-1)/2}2^{1-n}$

Variance of a random recursive relation

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