Why is the sample variance unbiased?
41930
Mean of $ \sum (X_i - \bar{X})^2$
123850
Sample variance derivation
4130
Variance of a bounded random variable
5325
Unbiased Estimator for a Uniform Variable Support
6590
PCA and proportion of variance explained
145044
Why do I get zero variance of a random effect in my mixed model, despite some variation in the data?
96497
Population Variance and Sample Variance
19236
Intuitive reason why sampling without replacement doesnt change expectation?
86337
What is the intuition behind exchangeable samples under the null hypothesis?
80801
Why does the variance of the Random walk increase?
15530
Variance of sample mean.
139123
Is $\bar X$ a minimum variance unbiased estimator of $\theta$ in an exponential distribution?
35139
Why is sample standard deviation a biased estimator of $\sigma$?
1675
Breusch–Pagan test for heteroscedasticity contradicts White's test?
93521
Why is the expected value (mean) of a variable written using square brackets?
128388
Proper order of variables in unbalanced ANOVA
43782
When estimating variance, why do unbiased estimators divide by n-1 yet maximum likelihood estimates divide by n?