Question

Mean and variance of the order statistics of a discrete uniform sample without replacement

score 1k · Answer 1 · 2026-03-29 03:03:50

1k

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Mean and variance of the order statistics of a discrete uniform sample without replacement

Published on 29 Mar 2026 - 3:03

score 1.3k · Answer 2 · 2013-04-07 14:30:15

1.3k

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Expanding the square in the variance

Published on 07 Apr 2013 - 14:30

score 960 · Answer 3 · 2013-08-23 06:27:49

960

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Minimize variance of a linear function

Published on 23 Aug 2013 - 6:27

score 1.1k · Answer 4 · 2013-12-20 00:59:08

1.1k

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Boyd & Vandenberghe, Exercise 2.15g — Convexity of a region on the probability simplex

Published on 20 Dec 2013 - 0:59

score 49 · Answer 5 · 2017-04-09 17:22:48

49

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Variance property

Published on 09 Apr 2017 - 17:22

score 57 · Answer 6 · 2017-04-12 06:15:11

57

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How to find variance for the given problem?

Published on 12 Apr 2017 - 6:15

score 110 · Answer 7 · 2017-04-14 14:31:43

110

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We have $20$ students and $15$ lessons. In every lesson, one student is randomly picked and asked a question. Find expected value and variance.

Published on 14 Apr 2017 - 14:31

score 64 · Answer 8 · 2017-04-14 15:06:57

64

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Die roll until we get 5 and 6, no matter in what order. Find expected value and variance.

Published on 14 Apr 2017 - 15:06

score 247 · Answer 9 · 2017-04-15 20:58:36

247

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Given $E[Y]=2$ and $Var[Y]=3$, find $Var[3Y+4]$.

Published on 15 Apr 2017 - 20:58

score 32 · Answer 10 · 2017-04-16 09:44:42

32

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Variance of random variable with distribution $2(x+1)^{-3}$

Published on 16 Apr 2017 - 9:44

score 1.9k · Answer 11 · 2017-04-16 12:51:11

1.9k

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Rewriting Sample Variance Formula

Published on 16 Apr 2017 - 12:51

score 61 · Answer 12 · 2017-04-17 10:46:37

61

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Find the variance of the sample mean

Published on 17 Apr 2017 - 10:46

score 2.1k · Answer 13 · 2017-04-18 13:40:06

2.1k

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For what values k1 and k2 will the given combined estimator be an unbiased estimator with smallest variance among all such linear combinations?

Published on 18 Apr 2017 - 13:40

score 1.5k · Answer 14 · 2026-04-01 04:17:56

1.5k

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Find the maximum likelihood estimator for $\mu$

Published on 01 Apr 2026 - 4:17

score 142 · Answer 15 · 2026-04-01 00:10:57

142

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Is weighting by relative variance a meaningful way to weight variables?

Published on 01 Apr 2026 - 0:10

List Question

Mean and variance of the order statistics of a discrete uniform sample without replacement

Expanding the square in the variance

Minimize variance of a linear function

Boyd & Vandenberghe, Exercise 2.15g — Convexity of a region on the probability simplex

Variance property

How to find variance for the given problem?

We have $20$ students and $15$ lessons. In every lesson, one student is randomly picked and asked a question. Find expected value and variance.

Die roll until we get 5 and 6, no matter in what order. Find expected value and variance.

Given $E[Y]=2$ and $Var[Y]=3$, find $Var[3Y+4]$.

Variance of random variable with distribution $2(x+1)^{-3}$

Rewriting Sample Variance Formula

Find the variance of the sample mean

For what values k1 and k2 will the given combined estimator be an unbiased estimator with smallest variance among all such linear combinations?

Find the maximum likelihood estimator for $\mu$

Is weighting by relative variance a meaningful way to weight variables?

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