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
35

Data index
1 to 35

Sum of all given data
9764.304

Arithmetic mean of population or sample
278.98011428571

 Sum of squares of all differences from mean 
12.137175542857

Population variance
0.34677644408164

Population standard deviation
± 0.58887727421054

Sample variance
0.35697575126051

Sample standard deviation
± 0.59747447749716
 
Download this PHP 7 Program: 30.3 kb - Standard Deviation Calculator