Standard Deviation and Variance Statistics Calculator
Jay Tanner - 2020

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
31

Data index
1 to 31

Sum of all given data
15981.39145

Arithmetic mean of population or sample
515.52875645161

 Sum of squares of all differences from mean 
48.022214263709

Population variance
1.5491036859261

Population standard deviation
± 1.2446299393499

Sample variance
1.600740475457

Sample standard deviation
± 1.2652037288346
 
Download this PHP 7 Program: 30.3 kb - Standard Deviation Calculator