List questions from expectation

Published on 09 Dec 2016 - 7:23

31

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Can we show that $E[|U+V|^k] \ge \max ( E[|U|^k], E[|V|^k] )$

Published on 09 Dec 2016 - 14:10

65

Views

Derivation of an integral identity

Published on 09 Dec 2016 - 15:38

22.1k

Views

Calculate $E(X^3)$ given value of $E(X)$ and $E(X^2)$

Published on 10 Dec 2016 - 13:42

141

Views

Iterated Law of Expectation in Linear Regression

Published on 30 Mar 2026 - 10:39

1k

Views

Prove an inequality between second and fourth moments of a random variable

Published on 10 Dec 2016 - 23:35

196

Views

Why isn't my EM algorithm increasing the log-likelihood after each iteration?

Published on 11 Dec 2016 - 8:12

60

Views

Computing expectation of MLE?

Published on 12 Dec 2016 - 2:40

166

Views

Integrability regarding a probability density

Published on 12 Dec 2016 - 11:18

1k

Views

Conditional Expectation to a non integrable Random Variable

Published on 12 Dec 2016 - 11:42

1.2k

Views

Show that expectation value is finite

Published on 13 Dec 2016 - 12:09

205

Views

Is $g(u)= \frac{E [ \frac{1}{\sqrt{X}} e^{-\frac{a^2u^2}{2X}} ] }{E [ \frac{1}{\sqrt{X}} e^{-\frac{u^2}{2X}} ]}$ decreasing in $u$

Published on 13 Dec 2016 - 13:43

115

Views

What is $\lim_{x \to \infty} x^2f(x)$ where $\int_0^\infty f(x)\,\mathrm{d}x = 1 $

Published on 13 Dec 2016 - 16:04

120

Views

Why does the probabilistic method work to obtain bounds?

Published on 13 Dec 2016 - 21:38

614

Views

Convergence in mean-square of independent random variables

Published on 14 Dec 2016 - 6:40

List Question

I need help with understanding expected values

Can we show that $E[|U+V|^k] \ge \max ( E[|U|^k], E[|V|^k] )$

Derivation of an integral identity

Calculate $E(X^3)$ given value of $E(X)$ and $E(X^2)$

Iterated Law of Expectation in Linear Regression

Prove an inequality between second and fourth moments of a random variable

Why isn't my EM algorithm increasing the log-likelihood after each iteration?

Computing expectation of MLE?

Integrability regarding a probability density

Conditional Expectation to a non integrable Random Variable

Show that expectation value is finite

Is $g(u)= \frac{E [ \frac{1}{\sqrt{X}} e^{-\frac{a^2u^2}{2X}} ] }{E [ \frac{1}{\sqrt{X}} e^{-\frac{u^2}{2X}} ]}$ decreasing in $u$

What is $\lim_{x \to \infty} x^2f(x)$ where $\int_0^\infty f(x)\,\mathrm{d}x = 1 $

Why does the probabilistic method work to obtain bounds?

Convergence in mean-square of independent random variables

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