Difference between revisions of "Documentation/How Tos/Calc: STDEV function"
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: <tt>'''number1'''</tt> to <tt>'''number30'''</tt> are up to 30 numbers or ranges containing numbers. | : <tt>'''number1'''</tt> to <tt>'''number30'''</tt> are up to 30 numbers or ranges containing numbers. | ||
| − | : <tt>'''STDEV'''</tt> returns the standard deviation where <tt>'''number1'''</tt> to <tt>'''number30'''</tt> are a '''sample''' of the entire population. | + | : <tt>'''STDEV'''</tt> returns the standard deviation where <tt>'''number1'''</tt> to <tt>'''number30'''</tt> are a '''sample''' of the entire population. With ''N'' values in the sample, the calculation formula is: |
| + | |||
| + | : [[Image:Calc_sample_stddev_formula.png]]. | ||
=== Example: === | === Example: === | ||
Revision as of 05:14, 7 April 2008
STDEV
Returns the sample standard deviation of the arguments.
Syntax:
STDEV(number1; number2; ... number30)
- number1 to number30 are up to 30 numbers or ranges containing numbers.
- STDEV returns the standard deviation where number1 to number30 are a sample of the entire population. With N values in the sample, the calculation formula is:
-
.
Example:
STDEV(2; 6; 4)
- returns 2.
See also:
Issues:
- Calc assumes that logical values are 1 (TRUE) and 0 (FALSE). Excel ignores logical values.
