This is a Standard Deviation calculator, written in C# .NET, it shows the workings out. Obviously Excel will calculate standard deviation if you just need a final figure.
This application is aimed at those who want to understand how Standard Deviation is worked out, and can be useful in checking their calculations. You may find the following explanation useful; http://www.gcseguide.co.uk/standard_deviation.htm.
Quick Start Instructions
To use this application simple enter your figures into the 1st column on the grid, as each number is entered the standard deviation is recalculated. You can also use the import or past (Edit>Past) options to retrieve figures without having to enter them by hand.
Please visit standard deviation release area to install onto your computer, or run it from the web.