An urn contains balls numbered through . If you withdraw balls randomly in sequence, each time replacing the ball selected previously, find , where is the maximum of the chosen numbers
I'm not even sure what this question is asking me to find. Can someone help me clarify the question please?
Suppose is the set of numbered balls and
Letís find . There ways to have 4-tuples containing only 1, 2, or 3.
There ways to have 4-tuples containing only 1 or 2.
Therefore there ways to have 4-tuples made of 1, 2, or 3 with at least one 3.