Date: May 10, 2014 10:07 AM
Author: G. A. Edgar
Subject: Re: unique ordering
In article <firstname.lastname@example.org>,
> Thought experiment:
> Lets say that I randomly draw N letters out of a Scrabble letter-bag. I will
> then place those letters in a horizontal line on a table. How many UNIQUE
> patterns of letters can I produce? If there were no duplicates it would be
> easy (N factorial) but when there are duplicate letters it seems more
Are you thinking of actual Scrabble? Some letters have duplicates, and
other don't? And the number of duplicates varies on how
frequently-used the letter is?
Or is this a mathematical Scrabble: Every letter has an unlimited
supply, and the probability of drawing an E doesn't depend on whether
some E's have already been drawn.
G. A. Edgar http://www.math.ohio-state.edu/~edgar/