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Coin toss - probability
Following on from the code version of proverbs on fraerie's journal, I changed my coing toss script (practice makes perfect) to use Math::TrulyRandom. I left it running overnight and got this:

49.9012345679012% of 405000 tosses have come up heads.

Now I just need to calculate how probable this is. (I would have expected it to edge closer to 50%.)