I signed up for a Math Mentorship Program (for high school students) this term, but one of the students assigned to me is more interested in Statistics and Finance - something that would help him to do business :-) The closest I could come up with (using ideas of a friend) is some game theoretic stuff like <a href="http://theory.stanford.edu/~tim/papers/routing.pdf"> price of anarchy </a> (a related and possibly with much simpler mathematics is <a href="http://go2.wordpress.com/?id=725X1342&site=gravityandlevity.wordpress.com&url=http%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DqlwRG3WP4dsC%26pg%3DPA39"> The Economics of Caste and of the Rat Race and Other Woeful Tales </a> by Akerlof), <a href="http://en.wikipedia.org/wiki/Arrow%27s_impossibility_theorem"> Arrow's Impossibility Theorem</a>, and possibly some <a href="http://en.wikipedia.org/wiki/Prospect_theory"> Prospect theory</a>. Does anyone have any idea about elementary interesting math related to Statistics or Finance?