Statistics

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The probability that a parent will visit a restaurant after kids game is know to be .68 and assumed the same for all parents. Assuming customer visits are independent and identical, determine the probability that 5 of 7 parents selected at random visit the restaurant. Calculator only. Need help understanding how to set this up.

  • Statistics -

    Formula:

    P(x) = (nCx)(p^x)[q^(n-x)]

    n = 7
    x = 5
    p = .68
    q = 1 - p = .32

    Substitute into the formula and calculate.

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