A matching problem consists of three civil war battles and three years. Sadly, it has been a while since you've taken 19th century American History, and you can't remember the dates of any battles. So you guess, at random, each of the
three, picking a different date for each battle. Find the probability distribution for Y , the number of correct matches.
confused @phi

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I need to find the probability for Y = 0,1,2, and 3

I think that for P(Y=2) it would be [C(3,1)+C(2,1)]/[C(3,1)+C(3,1)]

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