IV. Shibay-Shibay was handed a well-shuffled deck of 52 cards. Having a lot of energy, she decided to list all possible combinations of cards that form a full house. (Note that a full house consists of (i) a trio which is 3 cards of the same denomination and (ii) a pair which is 2 cards of the same denomination.) Find the probability that when she randomly picks one combination of cards from her list, she picks a full house whose pair has an even number denomination.

Q: 3/Sx+9 ニ 3x +13

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Q: 11

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