true blue anil top 0.92% this quarter
a puzzle aficionado, mainly interested in probability and combinatorics.
23 A gambler with the devil's luck? jun 23 '13
18 A king has n children, at least one of them is a daughter. What’s the probability that all of them are daughters? oct 16
6 Ways to arrange chips in a circle sep 30
5 How to find the probability that 2 comes before any even number in any 20! permutations possible? nov 22
5 Each of the two persons makes a single throw with a pair of unbiased dice.What is the probability that the throws are equal? oct 2