Euler Problem 100 asks: If a box contains twenty-one coloured discs, composed of fifteen blue discs and six red discs, and two discs were taken at random, it can be seen that the probability of taking two blue discs, P(BB) = (15/21)×(14/20) = 1/2.
The next such arrangement, for which there is exactly 50% chance of taking [...]
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Posted
May 09 2009, 11:32 AM
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Daily Dose of Excel