February 7, 2015

Three Choices with One Coin

At a restaurant, how could you choose one out of three desserts with equal probability with the help of one single coin?

3 comments:

  1. Flip the coin twice.
    HH = 1st dessert.
    HT = 2nd dessert.
    TH = 3rd dessert.
    TT = Start over.

    ReplyDelete
  2. Yup, binary.
    00 nothing
    01 dessert 1
    10 dessert 2
    11 dessert 3

    ReplyDelete
  3. heads is dessert 1
    tails is dessert 2
    the side of the coin is dessert 3

    ReplyDelete