For your Friday morning enjoyment, Spurious Correlations. Tyler Vigen has been collecting examples of data that correlate closely but most likely completely unrelated. My favourites are how the number of swimming-pool drownings correlate with the number of films Nicolas Cage appeared in, how worldwide non-commercial space launches correlate to number of sociology doctorates, and how the divorce rate in Maine correlates with the per capita consumption of margarine in the US. I always suspected margarine was at the root of social decay. Remember folks, correlation does not imply causation!!