Standard Deviation and Variance Statistics Calculator
Jay Tanner - 2024

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
47

Data index
1 to 47

Sum of all given data
27464.051

Arithmetic mean of population or sample
584.3415106383

 Sum of squares of all differences from mean 
33.696509744681

Population variance
0.71694701584427

Population standard deviation
± 0.84672723816131

Sample variance
0.73253282053654

Sample standard deviation
± 0.85588131217859
 
Download this PHP 7 Program: 30.3 kb - Standard Deviation Calculator