I made a simple webpage this weekend to demonstrate how stereotypes can be self-reinforcing. For me it was an exercise in making a kind of infographic. It's not exactly an infographic since I don't actually use any real data. It's more about learning the relationship between mental models and outcomes, which I think of as the "underlying system."
I would like to add some "exercises" at some point to guide people in playing with the assumptions.
I would also like to link to statistics and studies about racial profiling. I didn't start with those because I believe that understanding the underlying system is a prerequisite for understanding empirical studies.