I have a test tomorrow and there are 2 question I am stuck on(adsbygoogle = window.adsbygoogle || []).push({});

Five patrons check their coats at a theatre. In the confusion at the end of the performance, the attendant, in despair, hands the coats back at random

What is the probability taht 3 or more of the patrons will get their coat back.

The hint given is: can exactly 4 people receive their correct coat? Im pretty sure they cant because to do that, the fifth person would get the right coat back as well.

second one:

You are doing some wordprocessing, and you accidentally type 3 letters if the alphabet without noticing which ones you typed. What is the probability that the letters will be in alphabetical order from left to right?

So can anyone help? I knoe what the asnwers are, i just dotn know how to get them (the answer is 11/120 and 1/6)

somone, please explain!!!!

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# Question relating to probablilties

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