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Find standard deviation of average number of daily customers

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Reference no: EM132852696

The average number of customers entering in a shop on a daily basis is reasonably stable with mean 150 and variance 900.

  • What is the standard deviation of the average number of daily customers?
  • What is the probability that the average number of daily customers is greater than 160?
  • What is probability that the average number of daily number of customers is between 130 and 150?
  • Due to inventory and staff limitations can only all customers 80% of the time. What's the daily capacity of the store to serve customers?

Reference no: EM132852696

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