Question 206164
Bob, Mary, and Jen go to dinner. Each orders a different meal. The waiter forgets who ordered which meal, so he randomly places the meals before the three diners. Let C be the event that a diner gets the correct meal and let N be the event that a diner gets an incorrect meal. Enumerate the sample space and then find the probability that:
Sample space: 1 means got their order ; o means did not get their order
000,001,010,011,100,101,110,111
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a. No diner gets the correct meal-------------------1/8
b. Exactly one diner gets the correct meal----------3/8
c. Exactly two diners get the correct meal----------3/8
d. All three diners get the correct meal------------1/8

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Cheers,
Stan H.