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Five cards are selected at random without replacement from a standard 52-card deck. Let X be the number of face cards (kings, queens, or jacks)

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Five cards are selected at random without replacement from a standard 52-card deck. Let X be the number of face cards (kings, queens, or jacks) in the selected five cards. (a) How many possible combinations are there for the five cards selected? (b) How many possible combinations are there if exactly x of the five cards are face cards? (c) What is the PMF of X

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