List questions from expectation

Published on 14 Apr 2026 - 14:29

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Find the expectation and variance of a sum of N random variables where N is itself a random variable

Published on 14 Apr 2026 - 13:42

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Expected value of empirical conditional frequency

Published on 12 Apr 2026 - 22:47

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Why are $X=\mathcal N(0,1)$ and $|X|$ uncorrelated?

Published on 12 Apr 2026 - 17:07

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$E(x^4)$ for a normal distribution

Published on 16 Apr 2026 - 2:12

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Finding expected number of returns of a Markov chain

Published on 11 Apr 2026 - 7:30

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Finding Expectation of integer-valued Random Variable

Published on 09 Apr 2026 - 21:22

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The expected number of ball tosses to get a ball in a specific bin.

Published on 27 Mar 2026 - 18:09

43

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Growth rate optimization

Published on 09 Apr 2026 - 23:27

990

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what are the mean and variance of the sum of two folded normal distribution?

Published on 13 Apr 2026 - 13:27

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Why is $E[g(X,\beta)^T\ g(X,\beta)]$ derived to $\beta$ equals $E[g'(X,\beta)\ g(X,\beta)]$? Why no product rule in deriving?

Published on 16 Apr 2026 - 20:19

167

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Twist on St. Petersberg Paradox

Published on 12 Apr 2026 - 6:36

57

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minimization of |X of exponential distribution - c|

Published on 14 Apr 2026 - 20:46

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Derivative of expected value of a function

Published on 11 Apr 2026 - 12:27

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Calculating $\mathrm{cov}(aX,aY)$ when $X,Y$ are independent and $a$ is a constant

Published on 12 Apr 2026 - 4:50

List Question

Expectation of the intersection of several guessing games

Find the expectation and variance of a sum of N random variables where N is itself a random variable

Expected value of empirical conditional frequency

Why are $X=\mathcal N(0,1)$ and $|X|$ uncorrelated?

$E(x^4)$ for a normal distribution

Finding expected number of returns of a Markov chain

Finding Expectation of integer-valued Random Variable

The expected number of ball tosses to get a ball in a specific bin.

Growth rate optimization

what are the mean and variance of the sum of two folded normal distribution?

Why is $E[g(X,\beta)^T\ g(X,\beta)]$ derived to $\beta$ equals $E[g'(X,\beta)\ g(X,\beta)]$? Why no product rule in deriving?

Twist on St. Petersberg Paradox

minimization of |X of exponential distribution - c|

Derivative of expected value of a function

Calculating $\mathrm{cov}(aX,aY)$ when $X,Y$ are independent and $a$ is a constant

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