Mail orders. The number of orders, N, received daily by an online vendor of used CDs is
Chapter 5, Problem 51(choose chapter or problem)
Mail orders. The number of orders, N, received daily by an online vendor of used CDs is normally distributed with mean 250 and standard deviation 20. The company has to hire extra help or pay overtime on those days when the number of orders received is 300 or higher. What percentage of days will the company have to hire extra help or pay overtime?
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