Question

Given $X \in [2, 3]$, and $XY = 1$, solve the range of $E(X)E(Y)$?

score 113 · Answer 1 · 2017-04-17 13:15:57

113

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Given $X \in [2, 3]$, and $XY = 1$, solve the range of $E(X)E(Y)$?

Published on 17 Apr 2017 - 13:15

score 6.2k · Answer 2 · 2017-04-17 16:49:28

6.2k

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Bi-linear Property of Covariance.

Published on 17 Apr 2017 - 16:49

score 66 · Answer 3 · 2017-04-19 14:34:50

66

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Does it make sense to have a covariance matrix for values that are already measured?

Published on 19 Apr 2017 - 14:34

score 244 · Answer 4 · 2026-03-26 12:58:08

244

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Bounding covariance of random variables with point masses at zero using mixing coefficients

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score 133 · Answer 5 · 2026-03-28 00:56:24

133

Views

How will covariance matrix converge to the covariance function, especially in the aspect of eigenvalues and eigenvectors

Published on 28 Mar 2026 - 0:56

score 43 · Answer 6 · 2017-04-24 19:55:24

43

Views

What part of the Covariance formula determines its sign?

Published on 24 Apr 2017 - 19:55

score 40 · Answer 7 · 2026-03-29 13:46:47

40

Views

Weak dependence of MA

Published on 29 Mar 2026 - 13:46

score 158 · Answer 8 · 2026-03-31 19:12:58

158

Views

Proof that sum over autocorrelations is -1/2

Published on 31 Mar 2026 - 19:12

score 121 · Answer 9 · 2026-04-03 00:59:50

121

Views

The variance of a covariance

Published on 03 Apr 2026 - 0:59

score 1.3k · Answer 10 · 2026-02-23 03:30:22

1.3k

Views

"we note that the matrix Σ can be taken to be symmetric, without loss of generality"

Published on 23 Feb 2026 - 3:30

score 237 · Answer 11 · 2026-03-25 20:34:42

237

Views

Negative covariance between goals in bivariate Poisson model

Published on 25 Mar 2026 - 20:34

score 46 · Answer 12 · 2017-05-05 09:27:12

46

Views

Sequence of Bernoulli Variates with and without Indicator Function

Published on 05 May 2017 - 9:27

score 121 · Answer 13 · 2026-04-03 01:01:55

121

Views

Expected Value of a function of independent variables & non-independent variables

Published on 03 Apr 2026 - 1:01

score 116 · Answer 14 · 2026-04-02 16:14:28

116

Views

$\mathbb{E}(X)$ for joint pdf where $0<y<x< \infty$

Published on 02 Apr 2026 - 16:14

score 45 · Answer 15 · 2017-05-10 10:19:14

45

Views

Are the covariance matrices same?

Published on 10 May 2017 - 10:19

List Question

Given $X \in [2, 3]$, and $XY = 1$, solve the range of $E(X)E(Y)$?

Bi-linear Property of Covariance.

Does it make sense to have a covariance matrix for values that are already measured?

Bounding covariance of random variables with point masses at zero using mixing coefficients

How will covariance matrix converge to the covariance function, especially in the aspect of eigenvalues and eigenvectors

What part of the Covariance formula determines its sign?

Weak dependence of MA

Proof that sum over autocorrelations is -1/2

The variance of a covariance

"we note that the matrix Σ can be taken to be symmetric, without loss of generality"

Negative covariance between goals in bivariate Poisson model

Sequence of Bernoulli Variates with and without Indicator Function

Expected Value of a function of independent variables & non-independent variables

$\mathbb{E}(X)$ for joint pdf where $0<y<x< \infty$

Are the covariance matrices same?

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