[]
This function returns the standard deviation for a set of numbers.
STDEV(number1, [number2], ...)
This function has these arguments:
Argument | Description |
|---|---|
number1 | [Required] The first number argument corresponding to a sample of a population. |
number2 | [Optional] Number arguments 2 to 255 corresponding to a sample of a population. You can also use a single array or a reference to an array instead of arguments separated by commas. |
The standard deviation is a measure of how widely values are dispersed from the average value.
The standard deviation is calculated using the "non-biased" or "n–1" method.
The equation for calculating the standard deviation is:

where x is the value and n is the number of values.
This 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.
This function differs from the STDEVA, which allows text or logical values as well as numeric values.
STDEV(A1,B2,C3,D4,E5,F6)
STDEV(A1:A9)
STDEV(R1C2,R3C4,R4C5,R7C2)
STDEV(95,89,73,87,85,76,100,96,96) gives the result 9.3422576382