Standard Deviation and Variance Statistics Calculator
Jay Tanner - 2021

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
40

Data index
1 to 40

Sum of all given data
14897.557259

Arithmetic mean of population or sample
372.438931475

 Sum of squares of all differences from mean 
25.732928374864

Population variance
0.6433232093716

Population standard deviation
± 0.80207431661386

Sample variance
0.65981867627856

Sample standard deviation
± 0.81229223576159
 
Download this PHP 7 Program: 30.3 kb - Standard Deviation Calculator