OK, think you know all about Aids in Africa... this may change your mind (and if I don't change your mind, why am I here??)
Oxford mathematician Peter Donnelly explores the common mistakes we make in interpreting statistics, and the devastating impact these errors can have on the outcome of criminal trials. Statistical uncertainty and randomness, he says, confound many of our assumptions about the world. He shares the case of a British woman wrongly convicted of murdering her two infants -- a verdict reached, in part, by the misuse of statistics.
Another nice tool for your desktop is the NCSS Probability calculator, also free. At the same page you can download a free software called NCSS 6.0 Jr; a mini-version of their full range statistical software product.
and this will download a free demo of Minitab but it is only good for thirty days.
This link will download a zipped testing program with lots of multiple choice questions in different areas we have covered (and a few we haven't)
Calculator Help? Here is a great link for learning to get the most out of your calculator. Stat Crunch has switched to a pay site.. This link will open STATCRUNCH, a Java based statistical computing package that works on-line.