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What is the probability that you get at least one head in 4 tosses of a fair coin?

15/16, 3/4, 1/2, or 1/16?

  • Probability -

    It equals 1 minus the probability of zero heads. (If you get at least one, you don't get zero)
    = 1 - (1/4)^4
    which is one of your choices

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