Assume that the number of airline customer service complaints filed with the Department of Transportation’s Office of Aviation Enforcement and Proceedings (OAEP) in one day is distributed as a Poisson variable. The mean number of customer service complaints against travel agents filed is 1.2 per day.

What is the probability that in any given day

a. Zero customer service complaints against travel agents will be filed?

b. Exactly one customer service complaint against travel agents will be filed?

c. Two or more customer service complaints against travel agents will be filed?

d. Fewer than three customer service complaints against travel agents will be filed?