Calculates the standard deviation of a population based on a sample given as a list of arguments. A standard deviation is a measure of how widely values are dispersed from the average value (the mean).
Format: STDEV (number1, number2,...)
Argument:
ΓÇó number1, number2: A number, cell reference, or range.
Example:
STDEV (15, 21, 30, 56.886) returns 18.500.
Shows that the standard deviation of the list of arguments is 18.500.