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You may need to use the appropriate technology to answer this question. Emergency 911 calls to a small municipality in Idaho come in at the rate of one every four minutes. Assume that the number of 911 calls is a random variable that can be described by the Poisson distribution. (a) What is the expected number of 911 calls in 1 hour? 15 (b) What is the probability of three 911 calls in 5 minutes? (Round your answer to four decimal places.) x (c) What is the probability of no 911 calls in a 5-minute period? (Round your answer to four decimal places.) x

You may need to use the appropriate technology to answer this question. Emergency 911 calls to a small municipality in Idaho come in at the rate of one every four minutes. Assume that the number of 911 calls is a random variable that can be described by the Poisson distribution. (a) What is the expected number of 911 calls in 1 hour? 15 (b) What is the probability of three 911 calls in 5 minutes? (Round your answer to four decimal places.) x (c) What is the probability of no 911 calls in a 5-minute period? (Round your answer to four decimal places.) x

ENGR.ECONOMIC ANALYSIS
ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN:9780190931919
Author:NEWNAN
Publisher:NEWNAN
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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You may need to use the appropriate technology to answer this question. Emergency 911 calls to a small municipality in Idaho come in at the rate of one every four minutes. Assume that the number of 911 calls is a random variable that can be described by the Poisson distribution. (a) What is the expected number of 911 calls in 1 hour? 15 (b) What is the probability of three 911 calls in 5 minutes? (Round your answer to four decimal places.) x (c) What is the probability of no 911 calls in a 5-minute period? (Round your answer to four decimal places.) x
Transcribed Image Text:You may need to use the appropriate technology to answer this question. Emergency 911 calls to a small municipality in Idaho come in at the rate of one every four minutes. Assume that the number of 911 calls is a random variable that can be described by the Poisson distribution. (a) What is the expected number of 911 calls in 1 hour? 15 (b) What is the probability of three 911 calls in 5 minutes? (Round your answer to four decimal places.) x (c) What is the probability of no 911 calls in a 5-minute period? (Round your answer to four decimal places.) x
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