List questions from expected-value

Published on 08 Apr 2026 - 20:48

175

Views

Expectation on drawing a random variable based on another random variable

Published on 11 Apr 2026 - 9:27

184

Views

If you draw $4$ points for a uniform distribution $[0,1]$, what's the expected value of the smallest number?

Published on 16 Apr 2026 - 8:32

102

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Problem about probability of observing a particular DNA sequence related to Beta binomial conjugacy

Published on 13 Apr 2026 - 21:22

114

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Expectation of maxima of $n$ Erlang-distributed (Gamma-distributed) random variables for small $n$

Published on 25 Mar 2026 - 8:09

34

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Expected distance between $k$ points on $n$ slots.

Published on 18 Apr 2026 - 4:53

27

Views

If $v$ is a random vector and $A$ is a random matrix with $E[A] = C$, is it true that $E[v^TAv] = E[v^TCv]$?

Published on 13 Apr 2026 - 21:20

382

Views

Expectation and variance of $Y = (X+2)^3$ where $X \sim \text{Ber}(p)$

Published on 15 Apr 2026 - 21:51

54

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Find $E[X^2Y^2]$ if you know $E[XY]$, correlation $\rho_{XY}$ and distribution of $X,Y$

Published on 12 Apr 2026 - 18:53

355

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Expected value of $|X - Y|$

Published on 12 Apr 2026 - 5:26

249

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In Bayesian inference why is $E[\hat\Theta|X] = \hat\Theta$ ?!

Published on 12 Apr 2026 - 18:48

212

Views

Show integrability given tail probability goes to zero

Published on 15 Apr 2026 - 0:00

484

Views

Expected value in a dice roll game

Published on 12 Apr 2026 - 8:43

201

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Expected value in case of a 100 sided die

Published on 11 Apr 2026 - 14:43

81

Views

Integrating a Gaussian Distribution with more than just x in the exponent

Published on 16 Apr 2026 - 3:41

List Question

Monotonicity of a function defined by this equation

Expectation on drawing a random variable based on another random variable

If you draw $4$ points for a uniform distribution $[0,1]$, what's the expected value of the smallest number?

Problem about probability of observing a particular DNA sequence related to Beta binomial conjugacy

Expectation of maxima of $n$ Erlang-distributed (Gamma-distributed) random variables for small $n$

Expected distance between $k$ points on $n$ slots.

If $v$ is a random vector and $A$ is a random matrix with $E[A] = C$, is it true that $E[v^TAv] = E[v^TCv]$?

Expectation and variance of $Y = (X+2)^3$ where $X \sim \text{Ber}(p)$

Find $E[X^2Y^2]$ if you know $E[XY]$, correlation $\rho_{XY}$ and distribution of $X,Y$

Expected value of $|X - Y|$

In Bayesian inference why is $E[\hat\Theta|X] = \hat\Theta$ ?!

Show integrability given tail probability goes to zero

Expected value in a dice roll game

Expected value in case of a 100 sided die

Integrating a Gaussian Distribution with more than just x in the exponent

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