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
34

Data index
1 to 34

Sum of all given data
14468.9611

Arithmetic mean of population or sample
425.55767941176

 Sum of squares of all differences from mean 
75.246998705588

Population variance
2.2131470207526

Population standard deviation
± 1.4876649558125

Sample variance
2.2802120819875

Sample standard deviation
± 1.5100371127848
 
Download this PHP 7 Program: 30.3 kb - Standard Deviation Calculator