STDEV

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Name

Standard deviation

Description

Returns the standard deviation for a set of numbers.

Syntax

STDEV(value1, value2, . . . )

Remarks

The standard deviation is a measure of how widely values are dispersed from the average value.

Accepts up to 30 arguments. Each argument can be a cell, a cell range, a float value, or an integer value.

The standard deviation is calculated using the "nonbiased" or "n–1" method. The function uses the following formula to calculate the standard deviation:

The STDEV function assumes that its arguments are a sample of the population. If your data represents the entire population, then compute the standard deviation using the STDEVP function.

See also AVERAGE, STDEVP, VAR, and VARP.

Data Type

Accepts numeric data for all arguments. Returns numeric data. For more information, see Data Type for Each Cell Type.

Example

STDEV(R1C2,R3C4,R4C5,R7C2)
STDEV(A1,B2,C3,D4,E5,F6)
STDEV(A1:A9)
STDEV(95,89,73,87,85,76,100,96,96)=9.3422576382