(Answered) Question telephone calls arrive at the information desk of

Statistics

Question: Telephone calls arrive at the information desk of a large computer software company at a rate of 15 per hour.

a. What is the probability that the next call will arrive within 3 minutes (0.05 hour)?

b. What is the probability that the next call will arrive within 15 minutes (0.25 hour)?

c. Suppose the company has just introduced an updated version of one of its software programs, and telephone calls are now arriving at a rate of 25 per hour. Given this information, redo (a) and (b).

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