Suppose the time X a customer must spend waiting in line at a certain bank is a

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Suppose the time X a customer must spend waiting in line at a certain bank is a random variable that is exponentially distributed with density function

where x is the number of minutes a randomly selected customer spends waiting in line.

a. Find the probability that a customer will have to stand in line at least 8 minutes.

b. Find the probability that a customer will have to stand in line between 1 and 5 minutes.

c. Find the expected waiting time for customers at the bank.

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Related Book For answer-question

Calculus For Business, Economics And The Social And Life Sciences

ISBN: 9780073532387

11th Brief Edition

Authors: Laurence Hoffmann, Gerald Bradley, David Sobecki, Michael Price

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Question Posted: Jun 22, 2023 12:26 AM

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Suppose the time X a customer must spend waiting in line at a certain bank is a

Question:

f(x) -e-x/4 if x ≥ 0 if x < 0

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a The probability den...View the full answer

Calculus For Business, Economics And The Social And Life Sciences

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