Empowering a brighter world through superior education is our commitment.

Online Calculators & Tools

Standard Deviation Calculator

Discrete random variable standard deviation calculator

In each row, enter the data number and probability or weight:

Data numberProbability

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