Quiz_9_Solutions

Quiz_9_Solutions - Quiz 9 Name: _ November 13, 2009 An...

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Quiz 9 Name: ________________________________ November 13, 2009 An operator receives an average of 5 calls per minute. The time between calls follows an exponential distribution. Let C be the time the operator waits for the next call. a. What is the probability the operator waits exactly 15 seconds for the next call? b. What is the probability the operator waits at least 15 seconds for the next call? = c. Given the operator has been waiting 15 seconds and still hasn’t received the next call, what is the probability the operator will have to wait more than 25 seconds total? =
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Name: ________________________________ November 13, 2009 The time a customer service desk receives the next complaint follows an exponential distribution with a mean of 10 minutes. Let C be the time until the service desk receives its next complaint. a. Name the distribution and parameters of C. b. What is the probability the service desk waits more than 7 minutes for the next complaint? c.
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This note was uploaded on 03/27/2012 for the course STAT 225 taught by Professor Martin during the Fall '08 term at Purdue.

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Quiz_9_Solutions - Quiz 9 Name: _ November 13, 2009 An...

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