The STDEV function is used to calculate the Standard Deviation based on a sample.
Note: Standard Deviation is a measure that shows how much variation of values exists from the average (mean).
Formula:=STDEV(Number 1, Number 2, up to Number 255)
Whereas "Number1, number2, ...number 255" are numbers corresponding to a sample of a population.
Let us find the standard deviation based on a sample, using the STDEV function, with the help of the below video.