Spread.NET 17 Formula Reference
Formula Functions / Functions R to S / STDEVPA
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    This function returns the standard deviation for an entire specified population, including text or logical values as well as numeric values.




    Each argument can be a cell, a cell range, a float value, text, a logical value, or an integer value. There can be up to 255 arguments. TRUE evaluates as 1. Text or FALSE evaluates as 0.


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

    The standard deviation is calculated using the "biased" or "n" method.

    The equation for calculating the standard deviation for a population is:

    STDEVPA Equation

    where x is the value and n is the number of values.

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

    This function differs from STDEVP because it accepts text or logical values as well as numeric values.

    Data Types

    Accepts numeric, text, and logical data for all arguments. Returns numeric data.





    STDEVPA(95,89,73,87,85,76,100,96,96) gives the result 8.8079649700

    Version Available

    This function is available in product version 2.0 or later.

    See Also

    AVERAGE | STDEVP | STDEVA | Statistical Functions