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The weekly processing time of computers (measured in hours) has a probability density function given by 12 x (5-2) OSXS5 f ( x ) =

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The weekly processing time of computers (measured in hours) has a probability density function given by 12 x (5-2) OSXS5 f ( x ) = 625 0 elsewhere Find the expected value and the variance of computer processing time. The processing time costs the firm $5000 per hour. Find the expected value and variance of the weekly costs for processing time

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