4 Variance is, as you say, a measure of deviation. Or, rather, standard deviation (the square root of the variance) is a measure of deviation. So it's really standard deviation and average deviation you ought …

Jul 12, 2015 · The variance measures how far a set of numbers is spread out whereas the MSE measures the average of the squares of the "errors", that is, the difference between the estimator …

Notice that with this notation, $\mu_ {2}$ is the population variance (what you are used to notating with $\sigma^2$, so $\mu_ {2}^ {2}$ would be the square of this (or $\sigma^ {4}$).

Difference between variance and 2nd moment Ask Question Asked 9 years ago Modified 8 months ago

May 26, 2015 · I'm not familiar with the equation input method, so I handwrite the proof. I'm using the variant of geometric distribution the same as @ndrizza. Therefore E [X]=1/p in this case. handwritten …

Mar 20, 2018 · If X is a random continuous variable, what is the mean and variance of $X^2$? I'm not a math major and also using a non math-major book, and I can't understand the ...

Mar 3, 2022 · Finding the variance of a function Ask Question Asked 3 years, 9 months ago Modified 3 years, 9 months ago

Oct 16, 2023 · Is there some explicit relation between the sub-gaussian norm and the variance proxy? Or are they perhaps even the same thing? If not, in which scenarios may they be equal?

The symbols for variance and covariance Ask Question Asked 9 years, 10 months ago Modified 9 years, 10 months ago

Jul 20, 2017 · You are right, I don't understand why the variance of a constant matrix P, times a random vector u, is Var (Pu)=PuP' why?