Suppose that the average number of airline crashes in a country is 1.9 per month.
(a) What is the probability that there will be at least 2 accidents in the next month?
Probability =
(b) What is the probability that there will be at least 4 accidents in the next two months?
Probability =
(c) What is the probability that there will be at most 3 accidents in the next four months?
Probability =