List questions from variance

Published on 02 Apr 2021 - 19:10

104

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Compute Variance of a the ratio of different terms : which term to consider as random variable?

Published on 02 Apr 2026 - 9:38

37

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Calculating algebraically the variance of finite series

Published on 02 Apr 2026 - 9:33

38

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Calculate the manager's expected impatience level. Find the variance of the manager's impatience level.

Published on 31 Mar 2026 - 22:26

352

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Finding probability of strictrly less than, when expectance and variance are given

Published on 02 Apr 2026 - 9:42

97

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How to prove the solution of a constrained optimisation problem?

Published on 02 Apr 2026 - 5:19

588

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Is scalar multiple of the t-distribution still a t-distribution?

Published on 02 Apr 2026 - 9:38

52

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How can we compute the skewness coefficient of the sample variance given by $E(\frac{[S^2-E(S^2)]^3}{[Var(S^2)]^{3/2}})$ in terms of the moments of X?

Published on 07 Apr 2021 - 21:09

89

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Exercise on Expected Value and Variance

Published on 08 Apr 2021 - 2:11

967

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Find $\mathbb{E}(X)$ and Var$(X)$ from the c.d.f.

Published on 27 Mar 2026 - 13:47

107

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Hedging bets to eliminate variance

Published on 27 Mar 2026 - 20:19

75

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Expectation of iid Bernoulli Function

Published on 09 Apr 2021 - 22:36

370

Views

Non-existent expectation and variance

Published on 12 Apr 2021 - 4:37

110

Views

Linear Combinations of Random Variable - Variance Difference

Published on 13 Apr 2021 - 6:20

642

Views

Finding covariance from exponential distribution

Published on 14 Apr 2021 - 1:35

List Question

Is $E[X^2] = E[|X|^2]$?

Compute Variance of a the ratio of different terms : which term to consider as random variable?

Calculating algebraically the variance of finite series

Calculate the manager's expected impatience level. Find the variance of the manager's impatience level.

Finding probability of strictrly less than, when expectance and variance are given

How to prove the solution of a constrained optimisation problem?

Is scalar multiple of the t-distribution still a t-distribution?

How can we compute the skewness coefficient of the sample variance given by $E(\frac{[S^2-E(S^2)]^3}{[Var(S^2)]^{3/2}})$ in terms of the moments of X?

Exercise on Expected Value and Variance

Find $\mathbb{E}(X)$ and Var$(X)$ from the c.d.f.

Hedging bets to eliminate variance

Expectation of iid Bernoulli Function

Non-existent expectation and variance

Linear Combinations of Random Variable - Variance Difference

Finding covariance from exponential distribution

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