Standard Deviation and Variance Statistics Calculator
Jay Tanner - 2024

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
8005.469459

Arithmetic mean of population or sample
186.17370834884

 Sum of squares of all differences from mean 
31.686255633172

Population variance
0.73688966588772

Population standard deviation
± 0.85842277805736

Sample variance
0.75443465793266

Sample standard deviation
± 0.86858198112364
 
Download this PHP 7 Program: 30.3 kb - Standard Deviation Calculator