Stdevpa function

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 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)