I investigated motorcycle fatalities and intercorrelations between various forms of unsafe operator behavior. This project included a lot of data exploration and visualization, as well as some random forest classifiers. See my writeup of the project on my blog here, as well as the code on github.
Map of Massachusetts Military Academy Site, from Savoie et al.
I investigated whether you could predict selenium concentrations in seafood using only the information on a USDA nutrition label, in an easily-interpretable way. See my writeup on this blog here, as well as the code and a powerpoint presentation on github.