If two coins are flipped, what is the probability that there will not be two heads?

Discussion in 'Calculator Requests' started by math_celebrity, Dec 1, 2022.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    If two coins are flipped, what is the probability that there will not be two heads?

    There's only one way to flip 2 coins and get 2 heads:
    P(HH) = 1/2 * 1/2 = 1/4

    Which means the probability of NOT getting 2 heads is:
    1 - 1/4 = 3/4

     
    Last edited: Jan 1, 2024

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