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11 votes
1 answer
362 views

Distribution of $x_4(x_1-x_3)+x_5(x_2-x_1)$ with iid $x_i \sim N(0,1)$

10 votes
2 answers
215 views

If $x$ is a normally distributed random variable, then what is the distribution of $x^4$ ? Does it follow a well-known distribution?

6 votes
2 answers
551 views

Expected triangle area from normal distribution

3 votes
1 answer
413 views

Expectation of cross product of normal distributed variables

3 votes
0 answers
93 views

PDF of $x_1^2+x_2^2-x_3^2-x_4^2$ with $x_i \sim N(\mu_i,1)$

2 votes
1 answer
72 views

Difference distribution of iid noncentral chi2 variables

2 votes
1 answer
103 views

Test for heteroscedasticity as function of a single independent variable or fitted value?

2 votes
1 answer
31 views

Covariance of transformation of 6 normal distributed variables

1 vote
0 answers
18 views

Piecewise orthogonal regression

1 vote
1 answer
21 views

Characteristic function of linearly transformed random variables with extracted factor

0 votes
0 answers
29 views

Distribution of $x_1 x_2+x_1 x_3$ with iid $x_i \sim N(0,1)$ [duplicate]

0 votes
1 answer
277 views

Posterior predictive of Gaussian