statistics

An average of 1.4 private airplanes arrive per hour at an airport.

Let x denote the number of private airplanes that will arrive at this airport during a given hour. Calculate the probability distribution of x.

Find the probability that x = 4.

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asked by maggie
  1. Using a Poisson distribution:

    P(x) = (e^-μ) (μ^x) / x!

    e = 2.71828
    µ = 1.4
    x = 4

    Substitute and calculate.

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