Standard Deviation

 The standard deviation is the square root of the variance.

Population Standard Deviation ()

Sample Standard Deviation (S)

where

= Population Variance

S2  = Sample Variance

See Also

Data Statistics

95% and 99% Confidence Interval for the Mean

Average Deviation

Coefficient of Kurtosis

Coefficient of Skewness

Coefficient of Variation

Critical Value of K-S Statistic at 90%, 95%, and 99% Significance Level

Kolmogorov-Smirnov Goodness of Fit Statistic for Normal Distribution

Mean

Standard Error of the Mean

Statistics References

Variance