Variance: logical/mathematical meaning
116209
Variance is the squared difference - why not to the 3, or 4 instead?
37371
Why is expected value of random variable equal to mean
39939
Variance of sample median
153456
What is the random variable $Z$ by the notation $Z =X/Y$?
15530
Variance of sample mean.
67246
How would you explain covariance to someone who understands only the mean?
154842
Zero variance Random variables
116797
How do I compute/estimate the variance of sequential data?
154986
Formal definition of a random variable
154022
Weighted Variance, one more time
156537
Recursive formula for variance
41256
Variance of a linear combination of vectors
98179
if 2 random variables have exactly same mean and variance
110894
Does the variance of a sum equal a double sum of covariances?
66905
Variance of Binomial Distribution $E[X^2]$
69507
What is the meaning of infinitesimal?
113956
Proof variance of Geometric Distribution