List questions from expected-value

Published on 15 Apr 2026 - 1:20

338

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When $X_{(i)}-X_{(i-1)}\sim \exp (i\lambda)$ is true?

Published on 14 Apr 2026 - 19:08

55

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Curie-Weiss probability and expected value distribution?

Published on 12 Apr 2026 - 11:24

116

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Simplify a combinatorial expression involving $\binom{n}{[n/2]}$

Published on 13 Apr 2026 - 13:52

149

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What is the difference between $X^+$ and $X | X > 0$ where $X \sim N(0,1)$

Published on 14 Apr 2026 - 11:14

103

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Strategy to maximize the expected sum of $3$ numbers each drawn from $\sim U(0, 1)$

Published on 14 Apr 2026 - 3:37

963

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Find a maximum likelihood $\theta$ for $N(\theta,1)$

Published on 15 Apr 2026 - 17:59

48

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For $X\sim \exp(\lambda)$ find $E\left( \min\left(\lfloor X\rfloor, m\right)\right)$

Published on 16 Apr 2026 - 16:30

201

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3rd order moment of normal random variable

Published on 14 Apr 2026 - 19:54

570

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Variance calculation for Beta Bernoulli model

Published on 14 Apr 2026 - 22:09

172

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Let $X$ be the value of the first dice and $Y$ the sum of the values when two dices are rolled. What is the correlation of $X$ and $Y$?

Published on 16 Apr 2026 - 15:25

100

Views

Expected value, variance, evaluating limits and probability of drawing a ball from the urn

Published on 14 Apr 2026 - 10:46

46

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If $E[X]<\infty$, X non-negativ then $X<\infty$ almost sure?

Published on 14 Apr 2026 - 8:45

51

Views

What is $E(X/Y)$ if $X$ and $Y$ are independent standard normal?

Published on 14 Apr 2026 - 9:38

436

Views

I am very confused about the probability formula $E[\min(X,k)]=\int_0^kxf(x)dx+k(1-F(k))$

Published on 16 Apr 2026 - 7:19

List Question

$X \sim N(0,1)$, what is the distribution of $X | X > 0$?

When $X_{(i)}-X_{(i-1)}\sim \exp (i\lambda)$ is true?

Curie-Weiss probability and expected value distribution?

Simplify a combinatorial expression involving $\binom{n}{[n/2]}$

What is the difference between $X^+$ and $X | X > 0$ where $X \sim N(0,1)$

Strategy to maximize the expected sum of $3$ numbers each drawn from $\sim U(0, 1)$

Find a maximum likelihood $\theta$ for $N(\theta,1)$

For $X\sim \exp(\lambda)$ find $E\left( \min\left(\lfloor X\rfloor, m\right)\right)$

3rd order moment of normal random variable

Variance calculation for Beta Bernoulli model

Let $X$ be the value of the first dice and $Y$ the sum of the values when two dices are rolled. What is the correlation of $X$ and $Y$?

Expected value, variance, evaluating limits and probability of drawing a ball from the urn

If $E[X]<\infty$, X non-negativ then $X<\infty$ almost sure?

What is $E(X/Y)$ if $X$ and $Y$ are independent standard normal?

I am very confused about the probability formula $E[\min(X,k)]=\int_0^kxf(x)dx+k(1-F(k))$

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