See https://en.m.wikipedia.org/wiki/P%C3%B3lya_urn_model Sorry about neglecting to include the link. Jim On Sunday, September 20, 2015, Dan Asimov <dasimov@earthlink.net> wrote:
Would anyone please be so kind as to say what the Polya urn model is?
(Not Jim, because he obviously doesn't want to bother.)
—Dan
On Sep 20, 2015, at 4:35 AM, James Propp <jamespropp@gmail.com <javascript:;>> wrote:
Does anyone have a pointer to the cute way of seeing that the Polya urn model gives rise to the uniform distribution at the nth level, by contriving a uniformly random permutation of 1,2,...,n whose first (or last) element corresponds to the number of white-vs.-black balls at the end?
_______________________________________________ math-fun mailing list math-fun@mailman.xmission.com <javascript:;> https://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun