The free Basic Version lets you experiment with Box Plots. You can generate data to analyse using a line-up of characters - which produces random datasets for characteristics like height, shoe size and age.
To get your copy, here's what you do:
If you want more from Yenka Statistics, you can buy the Full Version for your school, which gives you access to all of charts, graphs, data sources and probability games, along with sample lessons and editing tools.