What does the value in standard deviation means?
37418
What is a standard deviation?
56945
What does the math notation $\sum$ mean?
85351
Standard Deviation. Why do we take the square root of the entire equation?
39236
How can the confidence interval for standard deviation not include the sample standard deviation?
2799
Question about arithmetic–geometric mean
9192
Intuitive explanation for dividing by $n-1$ when calculating standard deviation?
35139
Why is sample standard deviation a biased estimator of $\sigma$?
117547
Standard error in multiple regression
109310
Understanding “the mean minimizes the mean squared error”
98697
What's the difference between variance and standard deviation?
50390
What's the mathematics definition of the F value in Analysis of Variance Table?
85319
Basic question regarding variance and stdev of a sample
153167
How does the expected value relate to mean, median, etc. in a non-normal distribution?
73181
Standard deviation of binned observations
30431
How is the notation $X\sim N(\mu,\sigma^2)$ read?
138123
Meaning of $5.1\sigma$ significance with regards to GW150914
94136
Why is variance squared?