Standard Deviation and Variance Statistics Calculator
Jay Tanner - 2022

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.  Copy/Paste/Replace with your own data.







Statistics Computed From The Above Data Table
Mathematical Expression Numerical Evaluation 

Data count
48

Data index
1 to 48

Sum of all given data
30020.716

Arithmetic mean of population or sample
625.43158333333

 Sum of squares of all differences from mean 
93.112361166667

Population variance
1.9398408576389

Population standard deviation
± 1.3927816977685

Sample variance
1.9811140673759

Sample standard deviation
± 1.4075205388824
 
Download this PHP 7 Program: 30.3 kb - Standard Deviation Calculator