Question: A product has four components A, B, C, and D designed in series. The finished product must have a reliability of 0.80, as a requirement.

A product has four components A, B, C, and D designed in series. The finished product must have a reliability of 0.80, as a requirement. The first three components come from a supplier, and have reliabilities of 0.89, 0.98, and 0.97. The fourth component also in series is being designed now. What must the reliability of component D be in order to meet the product reliability condition?

	A.	0.946
	B.	0.995
	C.	0.968
	D.	0.975
	E.	0.993

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