Find the expected value and variance of weekly cpu time

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Weekly CPU time used by an accounting firm has probability density function (measured in hours)

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a Find the expected value and variance of weekly CPU time.

b The CPU time costs the firm $200 per hour. Find the expected value and variance of the weekly cost for CPU time.

c Will the weekly cost exceed $600 very often? Why or why not?

Reference no: EM131196607

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