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?- Create a blank workbook or worksheet.
- Select the example in the Help topic. Do not select the row or column headers.
Selecting an example from Help
- Press CTRL+C.
- In the worksheet, select cell A1, and press CTRL+V.
- To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Tools menu, point to Formula Auditing, and then click Formula Auditing Mode.
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