| ENCYCLOPEDIA 4U .com |
Encyclopedia Home Page |
|
|
Standard deviationIn probability and statistics, the standard deviation, generally denoted σ ('sigma'), is the most commonly used measure of statistical dispersion which is measured with the same units as the data. It is calculated as the square root of the variance and is therefore always a non-negative number. The standard deviation of a sample, as opposed to a population, is denoted s. See also: mean, skewness, kurtosis, raw score, standard score. 
|
Content on this web site is provided for informational purposes only. We accept no responsibility for any loss, injury or inconvenience sustained by any person resulting from information published on this site. We encourage you to verify any critical information with the relevant authorities.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Standard deviation".