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cardinal

Apparently, this user prefers to keep an air of mystery about them.

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52 Proof of upper-tail inequality for standard normal distribution Mar 24 '11
44 Simple proof that $8\left(\frac{9}{10}\right)^8 > 1$ Mar 6 '11
36 Is the composition of $n$ convex functions itself a convex function? Feb 12 '12
29 Expert Minesweeper Probability Question Sep 8 '11
27 Birthday-coverage problem Mar 13 '11
23 Drunkard's walk on the $n^{th}$ roots of unity. Jan 15 '12
22 Quantile function properties Sep 25 '11
21 More examples of Simpson's Paradox, barring the ones on Wikipedia, Titanic, and delayed flights. Nov 20 '11
18 When linear combinations of independent random variables are still independent? May 30 '11
17 Uses of $\lim \limits_{h\to 0} \frac{f(x+h)-f(x-h)}{2h}$ Sep 18 '11
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