Mean and Variance of weighted sum of n random variables?
34259
Variance of linear combinations of correlated random variables
64720
Expected value of sums
141134
How to calculate weighted covariance?
32647
How to calculate the variance of a partition of variables
17747
What is the variance of the weighted mixture of two gaussians?
123850
Sample variance derivation
158388
Sampling error with weighted mean
123822
PDF and CDF of sum of random variables with different distributions
111742
Variance of sample variance?
40535
Sum over n variables
107507
Probability density function of a product of uniform random variables
98179
if 2 random variables have exactly same mean and variance
49454
Minimum and Maximum values of variance
140451
What am I doing wrong? Joint Density of sum of random variables!
38032
Finding the M.G.F of product of two random variables.
52903
Sum of squares of dependent Gaussian random variables
126655
Expected Sum of n numbers after m random opeartions on n numbers.