theory, unbiased estimation of a standard deviation is the calculation from a statistical sample of an estimated value of the standard deviation (a measure...

equation of the correction factor for small samples of n < 20. See unbiased estimation of standard deviation for further discussion. The standard error on...

for Unbiased Estimation of the Standard Deviation", The American Statistician, 25 (4): 30–32, doi:10.2307/2682923, JSTOR 2682923 "Standard Deviation Calculator"...

compute (as in unbiased estimation of standard deviation); because a biased estimator may be unbiased with respect to different measures of central tendency;...

deviation is not unbiased for the population standard deviation – see unbiased estimation of standard deviation. Further, for other distributions the sample...

of the population standard deviation, though there are correction factors for particular distributions, such as the normal; see unbiased estimation of...

coefficient of variation (CV), also known as normalized root-mean-square deviation (NRMSD), percent RMS, and relative standard deviation (RSD), is a standardized...

Agresti A. 1990. The Concise Encyclopedia of Statistics. Springer: Dodge, Y. 2008. Best Linear Unbiased Estimation and Prediction. New York: John Wiley &...

U-statistic U test Umbrella sampling Unbiased estimator – see bias (statistics) Unbiased estimation of standard deviation Uncertainty Uncertainty coefficient...

thus the corrected sample standard deviation (using Bessel's correction) is biased. The unbiased estimation of standard deviation is a technically involved...