why is the variance of t-distribution with 1 and 2 degrees of freedom undefined while these distributions can be drawn?
61537
Why does the Cauchy distribution have no mean?
147769
Truncated Gaussian distribution interpretation
39225
Generating values from a multivariate Gaussian distribution
12709
Moments of the truncated normal distribution (univariate) away from the mean
98064
Why is the sampling distribution of variance a chi-squared distribution?
30821
Should confidence intervals for linear regression coefficients be based on the normal or $t$ distribution?
135276
T-test equal variances, unequal sample sizes
4722
My distribution is normal; Kolmogorov-Smirnov test doesn't agree
45182
What is the link (discrepancy?) between these PDF/CDF and p-value distributions?
145623
Variance of dot product
32647
How to calculate the variance of a partition of variables
1119
A normal divided by the $\sqrt{\chi^2(s)/s}$ gives you a t-distribution -- proof
111742
Variance of sample variance?
11535
Square root of an inverse gamma distributed random variable
54706
Testing symmetry of a distribution around its mean
134510
How do you get $\rm{var}(\Theta -\hat\theta) = \rm{var}(\Theta)$?
85319
Basic question regarding variance and stdev of a sample