A complex machine is able to operate effectivelyas long as
Chapter 6, Problem 6.45(choose chapter or problem)
A complex machine is able to operate effectivelyas long as at least 3 of its 5 motors are functioning.If each motor independently functions for a randomamount of time with density function f (x) =xex, x > 0, compute the density function of thelength of time that the machine functions
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