Standard Deviation Calculator

Standard deviation (σ) calculator with mean value & variance online.

Population and sampled standard deviation calculator

Enter data values delimited with commas (e.g: 3,2,9,4) or spaces (e.g: 3 2 9 4) and press the Calculate button.


Discrete random variable standard deviation calculator

Enter probability or weight and data number in each row:

Data number Probability

Whole population standard deviation calculation

Population mean:

population mean

Population standard deviation:

population standard deviation

Sampled data standard deviation calculation

Sample mean:

Sample mean

Sample standard deviation:

Sample standard deviation

Discrete random variable standard deviation calculation

Random variable mean:

random variable mean

Discrete random variable standard deviation:

random standard deviation

 


See also

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