statistics, the standard deviation is a measure of the amount of variation of the values of a variable about its mean. A low standard deviation indicates that...

preferred to the more usual standard deviation. Note that unlike the usual arithmetic standard deviation, the geometric standard deviation is a multiplicative...

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

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

Look up standard deviation in Wiktionary, the free dictionary. Standard deviation is a widely used measure of variability or diversity used in statistics...

The standard error (SE) of a statistic (usually an estimate of a parameter) is the standard deviation of its sampling distribution or an estimate of that...

In statistics, the standard score is the number of standard deviations by which the value of a raw score (i.e., an observed value or data point) is above...

statistics, the standard deviation line (or SD line) marks points on a scatter plot that are an equal number of standard deviations away from the average...

known as a pooled standard deviation (also known as combined standard deviation, composite standard deviation, or overall standard deviation). In statistics...

a set of deviations, such as the standard deviation and the mean absolute deviation, measures of dispersion, and the mean signed deviation, a measure...