Question

5. Ten male senators are on their way to the Clinton Inaugural Ball. A crowd of disgruntled taxpayers attacks them with a vol ley of snowballs, knocking each senator's top hat to the ground. A helpful page retrieves the hats and hands one to each senator—but without checking to see who owns which one. What is the EXACT probability that EXACTLY nine senators will receive their own hats?

Answer 1

0

Explanation:

To make 9 people get the right hats, we end with one person left and their hat left. So, that person must get their hat, giving 10 instead of 9, so we have 0.

Answer 2

2/10

Explanation:

instead of 1/10 if he gave all the correct hats to each senator I add 1 and made it 2/10 because it a more likely chance then getting all of the hats correct. A 2 out of 10 chance. Its not likely but its more likely then returning all 10 of the hats to the correct owner.