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
40

Data index
1 to 40

Sum of all given data
23047.22412

Arithmetic mean of population or sample
576.180603

 Sum of squares of all differences from mean 
67.061024385241

Population variance
1.676525609631

Population standard deviation
± 1.2948071708293

Sample variance
1.7195134457754

Sample standard deviation
± 1.3113021946811
 
Download this PHP 7 Program: 30.3 kb - Standard Deviation Calculator