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
41

Data index
1 to 41

Sum of all given data
30465.69524

Arithmetic mean of population or sample
743.06573756098

 Sum of squares of all differences from mean 
14.513056290556

Population variance
0.35397698269649

Population standard deviation
± 0.59495964795647

Sample variance
0.3628264072639

Sample standard deviation
± 0.6023507344263
 
Download this PHP 7 Program: 30.3 kb - Standard Deviation Calculator