Question

What is the PDF of this scaled non-central chi-squared random variable and what is the result of its integral?

score 296 · Answer 1 · 2026-03-22 19:25:44

296

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What is the PDF of this scaled non-central chi-squared random variable and what is the result of its integral?

Published on 22 Mar 2026 - 19:25

score 817 · Answer 2 · 2026-03-24 22:08:24

817

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How can we write a non-central chi-squared distribution as gamma distribution?

Published on 24 Mar 2026 - 22:08

score 976 · Answer 3 · 2026-03-24 23:59:19

976

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Chi Square Contingency Table - Formula Derivation

Published on 24 Mar 2026 - 23:59

score 83 · Answer 4 · 2018-04-19 16:12:33

83

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Distribution of $2k \frac{Z^2}{\sum_{i=1}^k Y_i}$, where $Z \sim \operatorname{N}(0,1)$ and $Y \sim \operatorname{EXP}(2)$

Published on 19 Apr 2018 - 16:12

score 47 · Answer 5 · 2026-03-25 07:42:56

47

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$\chi^2$ test for comparison of distributions

Published on 25 Mar 2026 - 7:42

score 255 · Answer 6 · 2026-03-22 06:58:33

255

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statistical proof chi squared distribution

Published on 22 Mar 2026 - 6:58

score 80 · Answer 7 · 2026-03-22 18:43:19

80

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Probability of supreme of chi-squared distribution

Published on 22 Mar 2026 - 18:43

score 667 · Answer 8 · 2026-03-25 09:28:48

667

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Prove when n=2, the sample variance follows the chi square distribution with 1 degrees of freedom

Published on 25 Mar 2026 - 9:28

score 101 · Answer 9 · 2026-03-25 09:31:27

101

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Whether to use chi square independence test?

Published on 25 Mar 2026 - 9:31

score 219 · Answer 10 · 2018-05-11 02:46:10

219

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Upper and Lower Bounds on a Chi Distributed Random Variable

Published on 11 May 2018 - 2:46

score 759 · Answer 11 · 2026-03-25 05:39:29

759

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Constant concentration for chi square variables

Published on 25 Mar 2026 - 5:39

score 184 · Answer 12 · 2026-03-24 23:58:58

184

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Chi-Square Test Statistic Help

Published on 24 Mar 2026 - 23:58

score 683 · Answer 13 · 2018-06-02 18:18:38

683

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Derivative of chi-squared function w.r.t. parameter vector

Published on 02 Jun 2018 - 18:18

score 1k · Answer 14 · 2018-06-04 18:55:50

1k

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$X$ normally distributed, then $X^T \Sigma ^{-1} X$ follows chi square distribution.

Published on 04 Jun 2018 - 18:55

score 348 · Answer 15 · 2018-06-05 14:54:47

348

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What is the variance of the square of a normal dataset with non-zero mean?

Published on 05 Jun 2018 - 14:54

List Question

What is the PDF of this scaled non-central chi-squared random variable and what is the result of its integral?

How can we write a non-central chi-squared distribution as gamma distribution?

Chi Square Contingency Table - Formula Derivation

Distribution of $2k \frac{Z^2}{\sum_{i=1}^k Y_i}$, where $Z \sim \operatorname{N}(0,1)$ and $Y \sim \operatorname{EXP}(2)$

$\chi^2$ test for comparison of distributions

statistical proof chi squared distribution

Probability of supreme of chi-squared distribution

Prove when n=2, the sample variance follows the chi square distribution with 1 degrees of freedom

Whether to use chi square independence test?

Upper and Lower Bounds on a Chi Distributed Random Variable

Constant concentration for chi square variables

Chi-Square Test Statistic Help

Derivative of chi-squared function w.r.t. parameter vector

$X$ normally distributed, then $X^T \Sigma ^{-1} X$ follows chi square distribution.

What is the variance of the square of a normal dataset with non-zero mean?

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