In article <2tfv1n$t8d at cville-srv.wam.umd.edu> bcohen at wam.umd.edu (Brad Cohen) writes:
>>Martin Gardner says that new mathematical puzzles are very
>difficult to devise. What do you think of this one?
>>A slightly less-than-honest bridge player (south) caught a
>glimpse of a card dealt to her opponent on the left (west) - it
>was a red ace (she could not tell which suit). This opponent --
>west -- opens the game by playing the ace of diamonds. South
>sees that neither she nor the revealed cards of north have the
>ace of hearts, which must be in either east's hand or west's
>hand. What is the probability now that west has the ace of
>hearts?
>>Note: In bridge, four players are each dealt 13 cards from a
>regular deck of cards. The one who initiates play is designated
>west, the others east, north and south. North's hand is revealed
>to all and the cards laid on the table.
>>For a solution using the resampling method, contact pcbruce at wam.umd.edu)
>.
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