If $W_1=Y_1+2Y_2$ and $W_2=4Y_1-Y_2$ what is the joint distribution of $W_1$ and $W_2$
42874
Identifying joint distribution
109382
What is the distribution of $Y = e^X$ when $X$ is normal?
82804
Probability density of sum of two beta random variables
65784
If $X,Y$ are independent $\chi ^2$ with $m$ and $n$ degrees of freedom, then $\frac{X}{X+Y} \sim\beta(m/2, n/2)$
136707
Show that if $X$ and $Y$ are independent with the same exponential distribution, then $Z= |X - Y|$ has the same exponential distribution
22117
Distribution of $(XY)^Z$ if $(X,Y,Z)$ is i.i.d. uniform on $[0,1]$
76188
Show $(W_1 + W_2 )^\perp = W_1^\perp \cap W_2^\perp$ and $W_1^\perp + W_2^\perp ⊆ (W_1 \cap W_2 )^\perp$
81363
How to compute $P(X>Y)$ if $X$ and $Y$ are independent and exponentially distributed
84203
Let $X_1$ and $X_2$ are independent $N(0, \sigma^2)$ random variables. What is the distribution of $X_1^2 + X_2^2$?
148811
Probability of two IID random variables
83243
How to find the joint PDF?
106140
The sum of two symmetric random variables is symmetric
131626
Finding the distribution of $\|X-\mu \|_\Sigma^2$ with $X \sim N(\mu,\Sigma)$
83508
Question about a marginal distribution
45492
Using Joint Distributions and conditional probabilities
91395
Distribution of sum of exponentials
80430
What is the distribution of the sum of non i.i.d. gaussian variates?