ill not will not sit opposite Mrs Jones sit 10 When two card

ill not will not sit opposite Mrs. Jones? sit 10. When two cards are drawn from an ordinary deck of 52 playing cards, as in the example on page 38, what are the probabilities of getting (a) two aces; (b) two spades, of which there are 13 in the deck; (c) a king and a queen?

Solution

10)

two aces

there are 4 aces so probability of 2 aces is 4C2 / 52C2 = 0.0045

b)

two spades there are 13 in the deck

so probability is 13C2 / 52C2 = 0.0588

c)

king and a queen

there are 4 kings,4 queens, 4 aces, and 1 jack,

probability = 4C1 * 4C1 / 52C2 = 0.0121