"This chart going back to 1996 explains two things: ... (2)"Theory of Runs" in probability." Larry, maybe you should try one of these for that? <A HREF="http://www.drugstore.com/templates/brand/default.asp?brand=7267" target="_new">http://www.drugstore.com/templates/brand/default.asp?brand=7267</A> HTH, Good luck. (: