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A sales firm receives an average of four calls per hour on its toll-free number. For any given hour, find the probability that it will receive exactly eight calls

  • statistics -

    Try the Poisson Distribution.

    Poisson distribution (m = mean):
    P(x) = e^(-m) m^x / x!

    Values:
    x = 8
    m = 4

    Substitute and calculate.

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