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The Office of Emergency Management of the city of Brampton reported that in a given time...

The Office of Emergency Management of the city of Brampton reported that in a given time period, '911' operators receive an average of 7.2 calls per hour. Assume that the number of '911' calls follows Poisson distribution. a. What is the probability that exactly five '911' calls will be made during the next hour? b. What is the probability that three or four '911' calls will be made during the next hour? c. What is the probability that three or more '911' calls will be made during the next hour? d. What is the probability that exactly four '911' calls will be made during the next 30 minutes?

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