Recently I started looking for an opportunity to refresh my math/stats skills. I din't do this stuff for a long time, probably more than a decade; so I wanted something really basic for a refresh. Then I discovered this Think Stats book, which I'm going through right now. I find the book useful and interesting. 

To add more fun, I decided to do all the exercises from the book in Clojure instead of Python. This indeed has turned out to be a good adventure. 

My worksheets (which is a work in progress) are on Github just in case it could be it useful for someone. The project is here - https://github.com/mikeivanov/thinkstats.