Question

2) The Poisson distribution is a good approximation to the binomial when n is large, p is small, and the Poisson parameter λ is set equal to np. You can do this problem with paper, pencil, and a calculator. Report answers to parts a) and b) to four decimal places a) Suppose that a disease affects approximately one out of 10,000 people. Assuming independence of people getting the disease, what is the probability that ina population of 100,000 people, there will be at least two people with the disease? b) Repeat part a) using the Poisson approximation. Is the approximation close?

Answer 1