List questions from expected-value

Published on 22 Jan 2020 - 14:08

41

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How to find expected mean of a random variable?

Published on 30 Mar 2026 - 6:23

35

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what is expected amount of RV when having minimal sum of $U[0,1]$ RV's that must exceed 2

Published on 22 Jan 2020 - 18:41

181

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What is $P(X < Y)$ when joint pdf is $f(x,y) = 2ye^{-xy-2y}\mathbb{1}_{[0, \infty) \times [0, \infty)}(x,y)$?

Published on 29 Mar 2026 - 7:29

58

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Why is this random variable integrable?

Published on 22 Jan 2020 - 21:00

174

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Exchange the limit with the expectation: why can I do it?

Published on 22 Jan 2020 - 22:43

122

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Exchange limit and expectation

Published on 01 Apr 2026 - 16:18

88

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Implications of convergence in quadratic mean over convergence in the 4-th mean

Published on 25 Mar 2026 - 16:03

188

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Find E(max({X^2,Y^2})) of two discrete random variables

Published on 30 Mar 2026 - 8:01

324

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What would be the distribution of $(X_i-\frac{1}{n}\sum^n_{i=1}X_i)?$

Published on 30 Mar 2026 - 7:56

49

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Uniqueness of conditional distributions

Published on 01 Apr 2026 - 4:15

20

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How many entries into this contest before a win is guaranteed.

Published on 24 Jan 2020 - 19:08

1.1k

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Expected value of squared difference of two uniform distributions

Published on 28 Mar 2026 - 13:40

120

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Compute expectation of Brownian motion integral $\int_0^t E[\cos(B_u)|F_s] du$

Published on 03 Apr 2026 - 1:10

899

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A winning wager that loses over time

Published on 25 Mar 2026 - 15:59

List Question

Calculating pdf, expectation and variance of random variable

How to find expected mean of a random variable?

what is expected amount of RV when having minimal sum of $U[0,1]$ RV's that must exceed 2

What is $P(X < Y)$ when joint pdf is $f(x,y) = 2ye^{-xy-2y}\mathbb{1}_{[0, \infty) \times [0, \infty)}(x,y)$?

Why is this random variable integrable?

Exchange the limit with the expectation: why can I do it?

Exchange limit and expectation

Implications of convergence in quadratic mean over convergence in the 4-th mean

Find E(max({X^2,Y^2})) of two discrete random variables

What would be the distribution of $(X_i-\frac{1}{n}\sum^n_{i=1}X_i)?$

Uniqueness of conditional distributions

How many entries into this contest before a win is guaranteed.

Expected value of squared difference of two uniform distributions

Compute expectation of Brownian motion integral $\int_0^t E[\cos(B_u)|F_s] du$

A winning wager that loses over time

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