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Probability help

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Five cards are drawn at random from an ordinary deck of 52 cards. Find the probability that the 5-card hand contains the following: (a) 2 kings and 2 jacks (b) All diamonds (c) 2 cards of the same suit (d) At least 2 clubs

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a) (4/52)(3/51)(4/50)(3/49)(48/48)5!/2!2! b) (13/52)(12/51)(11/50)(10/49)(9/48) c) 1 -- if the first four cards are different suits, the fifth one will be the same as one of them d) 1 - (39/52)(38/51)(37/50)(36/49)(35/48)

            
        

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