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
43

Data index
1 to 43

Sum of all given data
20981.2022

Arithmetic mean of population or sample
487.93493488372

 Sum of squares of all differences from mean 
14.430037657674

Population variance
0.3355822711087

Population standard deviation
± 0.57929463238382

Sample variance
0.34357232518272

Sample standard deviation
± 0.58615042880025
 
Download this PHP 7 Program: 30.3 kb - Standard Deviation Calculator