If the failure rate of the system is 0.000128 units, what is the mean – McqOptions

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1.	If the failure rate of the system is 0.000128 units, what is the mean time to fail?
A.	7812.5 units
B.	7830.5 units
C.	4530.5 units
D.	9821.5 units
Answer» B. 7830.5 units

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