math

two cards are selected at random without replacement from a well-shuffled deck of 52 playing cards. find the probability of the given event. a. two cards of the same suit are drawn. b. a pair is not drawn.

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  1. consider the deck either as 4 suits of 13, or as 13 suits of 4.

    P(same suit) = 1 * 12/51
    P(~pair) = 1-P(pair) = 1 - 1 * 3/51

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