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8 February, 06:44

A fair coin is tossed three times. Work out the probability of getting no tails.

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Answers (2)
  1. 8 February, 06:56
    0
    There are 2^3 possible combinations

    So

    P (getting no tails) = 1/2 * 1/2 * 1/2 = 1/8 as each time there is 1/2 chances of getting a heads
  2. 8 February, 09:59
    0
    1/8

    Because each time you have a 1/2 chance of heads or tails

    1/2 x 1/2 x 1/2 = 1/8
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