Apparently, this user prefers to keep an air of mystery about them.
31 In a family with two children, what are the chances, if one of the children is a girl, that both children are girls? dec 21 '10
4 2 slightly different situations in which 2 coins are tossed. Does the knowledge of an observer effect the probabilities of the outcomes? dec 24 '10
4 Let $(n, m)$, $n < m$ be an Amicable Pair. Looking for large sets of integers that cannot be $n$. nov 20 '10
3 True?: Let $(n, m)$ be an arbitrary Amicable Pair. Then $n$ is odd iff its last digit is $5$ nov 15 '10
2 Amicable pairs: any use for them yet? nov 9 '10
1 Will a point moving on a sphere always at an angle x (0 deg. < x < 90 deg.) to the “equator” reach a “pole”? jul 13 '13