http://mathworld.wolfram.com/StandardDeviation.html
On Tue, 2012-04-24 at 09:13 +0800, Qixu Cai wrote: > Dear Ed, > > Why the variance is the square of standard deviation? > > thank you very much! > > > 在 2012年4月23日，20:53，Ed Pozharski <[email protected]> 写道： > > > On Sun, 2012-04-22 at 12:47 +0530, Arka Chakraborty wrote: > >> baverage program in ccp4 gave average bfactor of 25.0 for the residue > >> but coot is showing 150! > > > > Variance is the square of standard deviation, thus var=150 means > > sigmaB~12 in that particular residue. High, but not impossible. > > > > -- > > I don't know why the sacrifice thing didn't work. > > Science behind it seemed so solid. > > Julian, King of Lemurs -- Oh, suddenly throwing a giraffe into a volcano to make water is crazy? Julian, King of Lemurs
