Assume that the Poisson distribution applies and that the mean number of hurricanes in a certain area is

5.6 per year.

a. Find the probability that, in a year, there will be 4 hurricanes

.b. In a 35-year period, how many years are expected to have 4 hurricanes?

c. How does the result from part (b) compare to a recent period of 35 years in which 5 years have 4 hurricanes? Does the Poisson distribution work well here?