Measurement of how much a sample diverges from the mean value, represented by the letter (sigma).
It tells you how concentrated the data is around the mean or, said differently, how much variability you’ve got in your set.
Measurement of how much a sample diverges from the mean value, represented by the letter (sigma).
It tells you how concentrated the data is around the mean or, said differently, how much variability you’ve got in your set.