Standard Deviation Calculator
Calculate mean, variance, standard deviation, sample standard deviation, minimum, maximum, and range for an entered number sequence.
Source / method note
Standard deviation is calculated as the square root of the average of the squared deviations from the arithmetic mean. The denominator is n-1 for sample calculation and n for population calculation.
Legal / official rate note
This tool is for educational, statistical, and general analysis purposes. Data cleaning, sample selection, and method preference in academic or professional reports should be additionally verified.
