Download PASW Statistics
This software is for managing data and to calculate a variety of statistics. It has frequencies: counts and percents, histograms, correlation, scatter plots, means and standards deviations, hypothesis testing and many more. All of the tools that PASW give to you will make your work easier and will allow you to make better and smarter decisions as well. If you need to learn more about how to use the program you can always go to the tutorial for some advices and clear the doubts or look for some help online. PASW is compatible for Windows XP/Vista/7 and it's also free to try and $799.00 to buy.