What is the standard deviation sd of the waiting time

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Reference no: EM131081932

For the delay D in Problem 2.7.4, what is the standard deviation σD of the waiting time?

Problem 2.7.4

It can take up to four days after you call for service to get your computer repaired. The computer company charges for repairs according to how long you have to wait. The number of days D until the service technician arrives and the service charge C, in dollars, are described by

(a) What is the expected waiting time µD = E[D]?

(b) What is the expected deviation E[D - µD]?

(d) What is the expected value E[C]?

Reference no: EM131081932

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