Suppose the probability of contracting a certain disease is p = 0.0006 for a new case in a given year.Use the Poisson model to approximate the probability that in a town where 8000 uninfected people there will be at least one new case of the disease next year.
A)0.9523
B)0.9918
C)0.0395
D)0.0082
E)0.9994

Question

Quizplus · Accepted Answer

The Poisson parameter λ is calculated as λ = 8000 * 0.0006 = 4.8. The probability of at least one new case is 1 minus the probability of zero cases, which is 1 - e^(-4.8) ≈ 0.9918.

Suppose the Probability of Contracting a Certain Disease Is P