The Manager of a Computer Help Desk Operation Has Collected

question 6

Multiple Choice

The manager of a computer help desk operation has collected enough data to conclude that the distribution of time per call is normally distributed with a mean equal to 8.21 minutes and a standard deviation of 2.14 minutes. What is the probability that three randomly monitored calls will each be completed in 4 minutes or less?

• A) 0.4756
• B) Approximately 0.1076
• C) About 0.00001
• D) Can't be determined without more information.

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