In article <firstname.lastname@example.org>, <email@example.com> wrote:
> 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 > complicated. > > Bob
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.