You may need to use the appropriate appendix table or technology to answer this question.

Emergency 911 calls to a small municipality in Idaho come in at the rate of one every two minutes.

(a)What is the expected number of calls in one hour?

(b)What is the probability of three calls in five minutes? (Round your answer to four decimal places.)

(c)What is the probability of no calls in a five-minute period? (Round your answer to four decimal places.)