Asked by Sarah

You type four letters to four different people and address the envelopes. If you then insert the letters into the envelopes randomly, what is the probability that exactly three letters will go into the correct envelopes?

Answers

Answered by Reiny
I think this is trick question.
If 3 are correct, how can the fourth be wrong?

So all 4 will have to be right.
prob of that = 1/4! = 1/24
Answered by Jen
Exactly 3 is impossible. If 3 were right, 4 would have to be right. The chances of exactly 3 would be 0.
There are no AI answers yet. The ability to request AI answers is coming soon!

Related Questions