A school band decides to have a car wash to raise money for instruments on a busy

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A school band decides to have a car wash to raise money for instruments on a busy holiday weekend. They determine that they can wash 30 cars per hour. Once they start, the cars arrive randomly at a rate of 20 cars per hour.

A. What percentage of the time is the band busy washing cars?

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Essentials of Statistics for Business and Economics

ISBN: 978-1305081598

7th edition

Authors: David Anderson, Thomas Williams, Dennis Sweeney, Jeffrey Cam

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Posted Date: Oct 04, 2018 04:06 AM

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A school band decides to have a car wash to raise money for instruments on a busy

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30 cars 60 min 1 car 2 min So on an average ea... View the full answer

Essentials of Statistics for Business and Economics

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