Table of Contents
This guide provides a practical overview of STDEV. P Function, including its main features, benefits, limitations, and important considerations.

Description: The function returns standard deviations based on the whole, ignoring logical values and text. Standard deviation is a measure of the dispersion of values against the mean. Support functions from Excel 2010 onwards.
Syntax: STDEV. P (number1, [number2]. )
Inside:
- number1, [number2]. : The values you want to calculate the standard deviation, where number1 is the required parameter, the remaining parameters are optional and contain up to 254 number parameters .
Attention:
- STDEV. P function assumes that its arguments are whole.
- For large sample sizes -> STDEV. S, STDEV. P returns the same value.
- Standard deviation calculated using the method 'n'.
- Arguments can be numbers, names or arrays that contain numbers.
- When typing logical values and presenting numeric values into function arguments -> these values are still calculated.
- Function error occurs when arguments are text or error values cannot be converted.
- If you want to calculate both logical values and text -> use STDEVPA function .
- Equation STDEV. P uses:
[sqrt {frac {{sum {{{left ({x - overline x} right)} ^ 2}}}} {n}}]
Inside:
+ x is the sample mean AVERAGE (number1, number2. )
+ n is the sample size.
For example:
Calculate the standard deviation based on the totality of the values in the following data table:

- In the cell to calculate, enter the formula : = STDEV. P (D6: D10)

- Press Enter -> standard deviation based on overall is:

- Where the values of the elements in the set are text or logical values -> they are ignored:

Above are instructions and some specific examples when using the STDEV. P function in Excel.
Good luck!
FAQ
What does the STDEV. P Function function do in Excel?
The STDEV. P Function function performs the calculation described in this guide. Use the correct arguments and compatible data types for reliable results.
How do I enter the STDEV. P Function function correctly?
Start with an equals sign, enter STDEV. P Function, add the required arguments inside parentheses, and confirm that cell references and separators are correct.
Why does the STDEV. P Function function return an error?
Common causes include missing arguments, invalid data types, incorrect cell references, unsupported values, or regional separator settings.
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