Standard deviation is a widely used measurement of variability or diversity used in statistics and probability theory. It shows how much variation or "dispersion" there is from the "average" (mean, or expected/budgeted value). A low standard deviation indicates that the data points tend to be very close to the mean, whereas high standard deviation indicates that the data are spread out over a large range of values.

## Comments

Uma Pratyusha

Sat, 10/09/2010 - 14:12

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## It is the square root of its

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UmaPrathyushaVOLETI VIJAYA KUMAR

Fri, 02/18/2011 - 18:34

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## Standard deviation is a

VIJAYA KUMAR.VOLETI M.Pharmacy

Asst Professor

Raos college of Pharamcy

Nellore