Question

Variance equations that yield inconsistent results

score 69 · Answer 1 · 2026-03-25 03:17:11

69

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Variance equations that yield inconsistent results

Published on 25 Mar 2026 - 3:17

score 129 · Answer 2 · 2019-01-26 20:30:27

129

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Given $X\sim\text{Binomial}(m,p)$ and $Y\sim\text{Binomial}(n,p)$, calculate $\textbf{P}(X = x | X + Y = s)$

Published on 26 Jan 2019 - 20:30

score 561 · Answer 3 · 2019-01-27 23:25:23

561

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Variance of the sum of uncorrelated variables

Published on 27 Jan 2019 - 23:25

score 58 · Answer 4 · 2019-01-28 01:19:15

58

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Need help understanding why $Var(max(X,Y)) = Var(min(X,Y))$ if $X$ and $Y$ are iid $N(0,1)$

Published on 28 Jan 2019 - 1:19

score 64 · Answer 5 · 2019-01-28 01:35:20

64

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Adding Independent Random Variables Given Their Individual Expectations and Variance

Published on 28 Jan 2019 - 1:35

score 29 · Answer 6 · 2026-03-25 18:47:23

29

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A question about marginal distributions, variance, covariance and independency

Published on 25 Mar 2026 - 18:47

score 29 · Answer 7 · 2019-01-29 14:50:57

29

Views

Possible simplified variance

Published on 29 Jan 2019 - 14:50

score 1.1k · Answer 8 · 2026-03-26 23:10:35

1.1k

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How to proof variance of the sum $x+y$ is the sum of variance $\sigma_x^2$ of $x$ and the variance $\sigma_y^2$ of $y$?

Published on 26 Mar 2026 - 23:10

score 3.2k · Answer 9 · 2026-03-25 20:09:43

3.2k

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Showing that an estimator for covariance is consistent?

Published on 25 Mar 2026 - 20:09

score 63 · Answer 10 · 2026-03-25 20:08:38

63

Views

central limit theorem: what is the variance?

Published on 25 Mar 2026 - 20:08

score 263 · Answer 11 · 2026-03-25 20:15:21

263

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Demonstration for covariance with linear combination of 2 variables

Published on 25 Mar 2026 - 20:15

score 219 · Answer 12 · 2019-02-03 00:59:47

219

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Variance of a mixed variable

Published on 03 Feb 2019 - 0:59

score 119 · Answer 13 · 2019-02-06 10:38:18

119

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Finding variance of a random variable given by two uncorrelated random variables

Published on 06 Feb 2019 - 10:38

score 258 · Answer 14 · 2026-03-25 19:04:34

258

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Adding the variances of 2 dependent variables and covariance

Published on 25 Mar 2026 - 19:04

score 40 · Answer 15 · 2019-02-08 06:48:11

40

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Expected value of random variables' sample means

Published on 08 Feb 2019 - 6:48

List Question

Variance equations that yield inconsistent results

Given $X\sim\text{Binomial}(m,p)$ and $Y\sim\text{Binomial}(n,p)$, calculate $\textbf{P}(X = x | X + Y = s)$

Variance of the sum of uncorrelated variables

Need help understanding why $Var(max(X,Y)) = Var(min(X,Y))$ if $X$ and $Y$ are iid $N(0,1)$

Adding Independent Random Variables Given Their Individual Expectations and Variance

A question about marginal distributions, variance, covariance and independency

Possible simplified variance

How to proof variance of the sum $x+y$ is the sum of variance $\sigma_x^2$ of $x$ and the variance $\sigma_y^2$ of $y$?

Showing that an estimator for covariance is consistent?

central limit theorem: what is the variance?

Demonstration for covariance with linear combination of 2 variables

Variance of a mixed variable

Finding variance of a random variable given by two uncorrelated random variables

Adding the variances of 2 dependent variables and covariance

Expected value of random variables' sample means

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