52 cards

Draw 1 at a time with replacement.

What is the probability that after n draws you have not drawn every card at least once?

- April 10th 2011, 07:50 AMbob000What is the chance of not having drawn every card after n draws.
52 cards

Draw 1 at a time with replacement.

What is the probability that after n draws you have not drawn every card at least once? - April 10th 2011, 08:11 AMPlato
This known as the coupon collection problem.

**There is no simple answer.** - April 12th 2011, 09:44 AMSherrie
If n is greater than 52*log(52) then the probability is 0 on average, for the case of n being less than or equal to 52*log(52) and greater than 52, thats a difficult one. (Wondering)