Expected Value of the Ratio of Independent Variables, E(X/(X+Y))
31197
Expected value of product of dependent random variables
70609
Multivariate Normal : expectation of X given Y is doubly-truncated
153456
What is the random variable $Z$ by the notation $Z =X/Y$?
79024
the derivation of E(X|X)
94319
Expected value of $|X - Y|$
62621
Expected value and variance of trace function
34278
A basic question on expectation of distribution composed random variables
46865
Proof of linearity for expectation given random variables are dependent
23603
Joint distribution of $X+Y$ and $\frac{X}{X+Y}$
62130
Distribution of ratio between two independent uniform random variables
81363
How to compute $P(X>Y)$ if $X$ and $Y$ are independent and exponentially distributed
89544
Expectation of a random variable that takes points in the natural numbers
74054
Conditional expectation for a sum of iid random variables: $E(\xi\mid\xi+\eta)=E(\eta\mid\xi+\eta)=\frac{\xi+\eta}{2}$
116975
Given $X$ and $Y$ are independent N(0,1) random variables and $Z = \sqrt{X^2+Y^2}$ from the marginal pdf of $Z$
100916
Finding $\mathrm{Cov}(X,Y)$ and $E(X\mid Y=y)$ given the joint density of $(X,Y)$
62605
How to find $\mathbb{E}(X\mid\mathbf{1}_{X<Y})$ where $X,Y$ are i.i.d exponential variables?
1301
Expected value and standard deviation of $X^2$ in terms of moments of $X$