List questions from variance

Published on 29 Mar 2026 - 5:34

192

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How would I show that data is consistent with the hypothesis that $\sigma_{1}^{2} = \sigma_{2}^{2}$?

Published on 29 Mar 2026 - 1:35

103

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How do I rewrite the variance in this simplified form?

Published on 10 Mar 2017 - 16:52

22

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Variance of a large sequence

Published on 11 Mar 2017 - 11:19

21.5k

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What is the variance of a constant?

Published on 11 Mar 2017 - 13:53

255

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Expected Value and Variance of Moving a Token on a Checkerboard Based on a Die Roll.

Published on 11 Mar 2017 - 22:44

136

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Is the sample variance $S_{n}^2 \xrightarrow{ L^2} \sigma^2$?

Published on 14 Mar 2017 - 23:58

70

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Seemingly Identical Random Variables with Different Variances

Published on 15 Mar 2017 - 20:22

56

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Variance of Portfolio

Published on 18 Mar 2017 - 3:35

32

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$\text{Var}(N)$ for $N$ = number of tosses of a fair coin until you see two consecutive heads

Published on 18 Mar 2017 - 17:40

32

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Is this RV binomial?

Published on 29 Mar 2026 - 15:53

2.5k

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UMVU estimator for the variance of Bernoulli random variables

Published on 29 Mar 2026 - 14:19

107

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Find a and b such that $ P(\sigma_^2 < a\sigma ^2) =0.025$ and $ P(\sigma_^2 > b\sigma ^2) =0.025$

Published on 29 Mar 2026 - 7:29

1.7k

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Normal Random Variable With Mean and Variance

Published on 28 Mar 2026 - 23:55

217

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Prove that $Cov(\hat{\beta}_{LS},\hat{\beta}_{GLS})=Var(\hat{\beta}_{GLS})$

Published on 23 Mar 2017 - 23:35

List Question

Hypothesis testing for variance

How would I show that data is consistent with the hypothesis that $\sigma_{1}^{2} = \sigma_{2}^{2}$?

How do I rewrite the variance in this simplified form?

Variance of a large sequence

What is the variance of a constant?

Expected Value and Variance of Moving a Token on a Checkerboard Based on a Die Roll.

Is the sample variance $S_{n}^2 \xrightarrow{ L^2} \sigma^2$?

Seemingly Identical Random Variables with Different Variances

Variance of Portfolio

$\text{Var}(N)$ for $N$ = number of tosses of a fair coin until you see two consecutive heads

Is this RV binomial?

UMVU estimator for the variance of Bernoulli random variables

Find a and b such that $ P(\sigma_^2 < a\sigma ^2) =0.025$ and $ P(\sigma_^2 > b\sigma ^2) =0.025$

Normal Random Variable With Mean and Variance

Prove that $Cov(\hat{\beta}_{LS},\hat{\beta}_{GLS})=Var(\hat{\beta}_{GLS})$

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