The STDEVPA function returns the 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, or mean, value.
=STDEVPA(num_1,[num_2], … )
Note: Beginning with Excel 2007, you can enter up to 255 number arguments to the function. Excel 2003 would only accept up to 30 number arguments.
|num_1||The first number, cell references or range argument corresponding to a population|
|[num_2], …||Optional. Additional numbers, cell references or ranges for which you want the skew, up to a maximum of 255|
|11||=STDEVPA(A2:A8)||2,883.297||Standard deviation of values provided in cells A2:A8|
Standard deviation is a statistical measure, that is closely linked to the variance. Both measures are commonly used across a set of values, to identify the amount the values differ, or deviate, from the average value.
Standard deviation is give by the square root of the variance, i.e.:
- x is the sample mean
- n is the sample size
See Wikipedia for more information on standard deviation.