Why should I prefer the standard deviation over other measures of variance?
8860
Why square the difference instead of taking the absolute value in standard deviation?
84018
Why is there not a simpler way to calculate the standard deviation?
51840
The standard normal distribution vs the t-distribution
39939
Variance of sample median
48618
Why is there a difference between a population variance and a sample variance
19247
How should one interpret the comparison of means from different sample sizes?
142187
Distributions other than the normal where mean and variance are independent
38858
Explained Variance
77619
Generalizing variance to two dimensions
66508
Bias in estimators of population variance
98064
Why is the sampling distribution of variance a chi-squared distribution?
132522
Does a big difference in sample sizes together with a difference in variances matter for a t-test (or permutation test)?
35139
Why is sample standard deviation a biased estimator of $\sigma$?
154022
Weighted Variance, one more time
112394
Why is  the Breusch-Pagan test significant on simulated data designed not to be heteroscedastic?
139959
Why do some statistics symbols have a "squared", e.g. Variance $\sigma^2$, "R squared" $R^2$ or heritability $H^2$
37418
What is a standard deviation?