STDEVPA

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

Syntax

STDEVPA(value1,value2, ...)

Value1,value2,... are 1 to 30 values corresponding to a population.

Remarks

STDEVPA assumes that its arguments are the entire population. If your data represents a sample of the population, you must compute the standard deviation using STDEVA.
Arguments that contain TRUE evaluate as 1; arguments that contain text or FALSE evaluate as 0 (zero). If the calculation must not include text or logical values, use the STDEVP spreadsheet function instead.
For large sample sizes, STDEVA and STDEVPA return approximately equal values.
The standard deviation is calculated using the "biased" or "n" method.
STDEVPA uses the following formula:

Example

St1	St2	St3	St4	St5	St6	St7	St8	St9	St10	Formula	Description (Result)
1345	1301	1368	1322	1310	1370	1318	1350	1303	1299	=STDEVPA([St1], [St2], [St3], [St4], [St5], [St6], [St7], [St8], [St9], [St10])	Standard deviation of breaking strength, assuming only 10 tools are produced (26.05455814)