Question

VarX of given density function of 2-dimensional random variable (X,Y)

score 69 · Answer 1 · 2017-03-28 15:24:17

69

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VarX of given density function of 2-dimensional random variable (X,Y)

Published on 28 Mar 2017 - 15:24

score 13.5k · Answer 2 · 2017-03-28 19:25:06

13.5k

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Expectation and variance of the Pareto distribution

Published on 28 Mar 2017 - 19:25

score 113 · Answer 3 · 2026-03-28 18:14:15

113

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Exponential Distribution with different parameters, calculating variance and expectation

Published on 28 Mar 2026 - 18:14

score 59 · Answer 4 · 2017-03-30 20:56:13

59

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Find the mean and the variance of a sum

Published on 30 Mar 2017 - 20:56

score 69 · Answer 5 · 2017-04-03 04:01:13

69

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Expectation of random variable with density function $\frac{1}{18}(6-x), 0\leq x\leq 6$.

Published on 03 Apr 2017 - 4:01

score 207 · Answer 6 · 2017-04-03 04:23:56

207

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How to prove an equality envolving variance and covariance

Published on 03 Apr 2017 - 4:23

score 89 · Answer 7 · 2026-03-29 16:56:03

89

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Is it possible to calculate variance on stochastic variable using multiple formulas?

Published on 29 Mar 2026 - 16:56

score 2.4k · Answer 8 · 2017-04-04 01:53:35

2.4k

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Why does a negative covariance reduce the variance of the sum of two dependent variables?

Published on 04 Apr 2017 - 1:53

score 120 · Answer 9 · 2017-04-04 13:26:56

120

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Variance of log return

Published on 04 Apr 2017 - 13:26

score 6.9k · Answer 10 · 2017-04-06 06:00:34

6.9k

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A die is thrown 100 times. What is the variance of the number of even numbers?

Published on 06 Apr 2017 - 6:00

score 161 · Answer 11 · 2017-04-06 23:51:03

161

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Show that $\sum_{k=1}^{\infty} \sigma^2_k <\infty$ implies $|\sum_{k=1}^{\infty} X_k|<\infty $ almost surely.

Published on 06 Apr 2017 - 23:51

score 134 · Answer 12 · 2017-04-07 02:38:22

134

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Finding $\text{E}(f(x))$,$\text{Var}(f(x))$ and the PDF of $f(x)$

Published on 07 Apr 2017 - 2:38

score 2.4k · Answer 13 · 2017-04-08 12:48:38

2.4k

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Marginal Probability Density Functions

Published on 08 Apr 2017 - 12:48

score 359 · Answer 14 · 2026-03-27 21:56:25

359

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Published on 27 Mar 2026 - 21:56

score 113 · Answer 15 · 2023-02-05 16:08:06

113

Views

How to prove the following inequality about $Var(x)$?

Published on 05 Feb 2023 - 16:08

List Question

VarX of given density function of 2-dimensional random variable (X,Y)

Expectation and variance of the Pareto distribution

Exponential Distribution with different parameters, calculating variance and expectation

Find the mean and the variance of a sum

Expectation of random variable with density function $\frac{1}{18}(6-x), 0\leq x\leq 6$.

How to prove an equality envolving variance and covariance

Is it possible to calculate variance on stochastic variable using multiple formulas?

Why does a negative covariance reduce the variance of the sum of two dependent variables?

Variance of log return

A die is thrown 100 times. What is the variance of the number of even numbers?

Show that $\sum_{k=1}^{\infty} \sigma^2_k <\infty$ implies $|\sum_{k=1}^{\infty} X_k|<\infty $ almost surely.

Finding $\text{E}(f(x))$,$\text{Var}(f(x))$ and the PDF of $f(x)$

Marginal Probability Density Functions

What is the difference between variance of estimate and estimated variance?

How to prove the following inequality about $Var(x)$?

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