Minitab is a statistical analysis software that is great for learning and teaching statistics.
It is extensively used by Six Sigma practitioners. The help feature that comes with the software is excellent. It has the capability to generate several statistical distributions, perform a variety of statistical analysis and plot results. Plots can be easily copied to other Windows applications such as Excel and Powerpoint. Data can be easily transferred back and forth between Excel and Minitab making data analysis and visualization very easy. One feature that Minitab lacks is the ability to perform analysis of long-tail distributions. Also, bootstrapping procedures are lacking.