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matrix equation with vector variable and covariance matrix

score 25 · Answer 1 · 2026-03-26 10:56:26

25

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matrix equation with vector variable and covariance matrix

Published on 26 Mar 2026 - 10:56

score 2k · Answer 2 · 2016-07-07 04:21:28

2k

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Find the covaraince of the number of hearts drawn and the number of clubs drawn from a deck of cards.

Published on 07 Jul 2016 - 4:21

score 157 · Answer 3 · 2026-03-29 23:45:19

157

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How could I find the covariance for $X$ and $Y$ in this case?

Published on 29 Mar 2026 - 23:45

score 752 · Answer 4 · 2016-07-10 06:48:36

752

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Finding Variance from Covariance

Published on 10 Jul 2016 - 6:48

score 177 · Answer 5 · 2026-03-28 06:31:03

177

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Means and Covariances of powers of a normal distribution

Published on 28 Mar 2026 - 6:31

score 1.5k · Answer 6 · 2026-03-30 17:17:24

1.5k

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How to calculate variance of W? Find the probability distribution of W?

Published on 30 Mar 2026 - 17:17

score 349 · Answer 7 · 2026-03-28 13:40:22

349

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Predict value of random variable B if value of random variable A and correlation is known

Published on 28 Mar 2026 - 13:40

score 231 · Answer 8 · 2016-07-17 20:56:10

231

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Compute $E(X\mid X+Y)$ if $(X,Y)$ is centered normal with known covariance matrix

Published on 17 Jul 2016 - 20:56

score 51 · Answer 9 · 2026-03-25 06:58:55

51

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What does it mean if $cov(f(x1), f(x2))$ is positive in the context of LHS sampling?

Published on 25 Mar 2026 - 6:58

score 157 · Answer 10 · 2026-03-25 12:14:31

157

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Covariance between squared bivariate geometrically distributed random variables

Published on 25 Mar 2026 - 12:14

score 751 · Answer 11 · 2016-08-10 05:06:49

751

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harmonic mean of covariance matrices.

Published on 10 Aug 2016 - 5:06

score 191 · Answer 12 · 2026-03-30 20:54:19

191

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Linear Stat Model Show: $\mathrm{cov}(\sum c_i y_i,\sum d_i y_i)=c_id_i\sum \mathrm{var}Y_i$

Published on 30 Mar 2026 - 20:54

score 86 · Answer 13 · 2016-08-10 23:13:39

86

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Two definitions of covariance of a multivariate distribution seem to give different answers

Published on 10 Aug 2016 - 23:13

score 90 · Answer 14 · 2016-08-11 17:04:15

90

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Find $\mathrm{Var}(\hat\beta | X)$ :Linear Regression

Published on 11 Aug 2016 - 17:04

score 1.8k · Answer 15 · 2026-03-27 00:02:53

1.8k

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covariance of two squared (not zero mean) random variables

Published on 27 Mar 2026 - 0:02

List Question

matrix equation with vector variable and covariance matrix

Find the covaraince of the number of hearts drawn and the number of clubs drawn from a deck of cards.

How could I find the covariance for $X$ and $Y$ in this case?

Finding Variance from Covariance

Means and Covariances of powers of a normal distribution

How to calculate variance of W? Find the probability distribution of W?

Predict value of random variable B if value of random variable A and correlation is known

Compute $E(X\mid X+Y)$ if $(X,Y)$ is centered normal with known covariance matrix

What does it mean if $cov(f(x1), f(x2))$ is positive in the context of LHS sampling?

Covariance between squared bivariate geometrically distributed random variables

harmonic mean of covariance matrices.

Linear Stat Model Show: $\mathrm{cov}(\sum c_i y_i,\sum d_i y_i)=c_id_i\sum \mathrm{var}Y_i$

Two definitions of covariance of a multivariate distribution seem to give different answers

Find $\mathrm{Var}(\hat\beta | X)$ :Linear Regression

covariance of two squared (not zero mean) random variables

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