Standard deviation (σ) Calculatrice with mean Valeur & variance online.
Entrer data values delimited with commas (e.g: 3,2,9,4) or spaces (e.g: 3 2 9 4) and press the Calculer button.
Entrer probability or weight and data number in each row:
Population mean:

Population standard deviation:

Sample mean:

Sample standard deviation:

Random variable mean:

Discrete random variable standard deviation:
