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4.32 Weekly CPU time used by an accounting firm has probability density function (measured in hours) given by (3/64)y²(4 – y), 0

4.32 Weekly CPU time used by an accounting firm has probability density function (measured in hours) given by (3/64)y²(4 – y), 0

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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4.32 Weekly CPU time used by an accounting firm has probability density function (measured in hours) given by | (3/64)y²(4 – y), 0<y< 4, 0, f (y) = elsewhere. 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 Would you expect the weekly cost to exceed $600 very often? Why?
Transcribed Image Text:4.32 Weekly CPU time used by an accounting firm has probability density function (measured in hours) given by | (3/64)y²(4 – y), 0<y< 4, 0, f (y) = elsewhere. 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 Would you expect the weekly cost to exceed $600 very often? Why?
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