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
50

Data index
1 to 50

Sum of all given data
23746.676078

Arithmetic mean of population or sample
474.93352156

 Sum of squares of all differences from mean 
17.794953563882

Population variance
0.35589907127765

Population standard deviation
± 0.59657277115005

Sample variance
0.36316231763025

Sample standard deviation
± 0.60262950278778
 
Download this PHP 7 Program: 30.3 kb - Standard Deviation Calculator