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STDEVP

See Also

Calculates standard deviation based on the entire population given as arguments. The standard deviation is a measure of how widely values are dispersed from the average value (the mean).

Syntax

STDEVP(number1,number2,...)

Number1, number2, ...    are 1 to 30 number arguments corresponding to a population. You can also use a single array or a reference to an array instead of arguments separated by commas.

• Text and logical values such as TRUE and FALSE are ignored. If logical values and text must not be ignored, use the STDEVPA worksheet function.

Remarks

• STDEVP assumes that its arguments are the entire population. If your data represents a sample of the population, then compute the standard deviation using STDEV.
• For large sample sizes, STDEV and STDEVP return approximately equal values.
• The standard deviation is calculated using the "biased" or "n" method.
• STDEVP uses the following formula:

  

  where x is the sample mean AVERAGE(number1,number2,…) and n is the sample size.

Example

The example may be easier to understand if you copy it to a blank worksheet.

How?