Suppose phone calls coming into an enquiry hotline follow Poisson distribution with an average rate ...

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Suppose phone calls coming into an enquiry hotline follow Poisson distribution with an average rate of 4 calls per minute. What is the probability that

1. exactly three calls will come in during a particular 1 minute interval

2. more than one call will come in during a particular 30 second period

    • 8 years ago
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    (1) λ = 4 P(x) = (e^-λ)(λ^x) / x! ...
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