Standard Deviation and Variance Statistics Calculator

Simply enter the delimited numerical data string/table and click [COMPUTE].
The numerical data elements can be separated by commas, spaces or semicolons.

The initial example data is randomly generated.  Replace with your own data table.








Statistics Computed From The Data Given Above
Mathematical Expression Numerical Evaluation 

Data count
23

Data index
1 to 23

Sum of all given data
11567.10427

Arithmetic mean of population or sample
502.91757695652

 Sum of squares of all differences from mean 
62.762159882687

Population variance
2.7287895601168

Population standard deviation
± 1.6519048278024

Sample variance
2.852825449213

Sample standard deviation
± 1.6890309201471
Program by Jay Tanner - 2024 - v2.21