Leslie Lamport, Microsoft Research
"On Hair Color in France"
On a trip to France, we were struck by our informal observation that, while almost all the men we encountered had brown hair, many of the women were blondes. This observation inspired us to conduct a scientific survey.
A formal statistical analysis using Fisher’s exact test was carried out. The probability that this disparity was due to chance (the p-value) is 7.62 x 10-21.
Additional research may clarify what, exactly, is going on here.