Accounting / Alan Wake / Norway
Edit : as for the math, I'll want to check my formula before I try to explain it, but dependent probability creates some unexpected realities. For example, you probably know that, in a room with 23 people, the odds are 51% that 2 of them share a birthday even though it defies intuition.
And in this case, rather than do the math out by hand I did kind of cheat and ran it through an Excel binomial dist function. ;)
Edit - ok, doing it by hand, yeah, I think I erred in trying to get excel to do it for me. ;)
Post edited May 30, 2015 by bler144