A System Is Composed of Four Parts, J, K, L

question 131

Multiple Choice

A system is composed of four parts, J, K, L, and M. All four must function for the system to function. The four component reliabilities are .99, .98, .992, and .998. The designers are considering putting a .80 reliable backup at K. This backup will change the system reliability from ________ to ________.

• A) 0.9762; 0.9605
• B) 0.9605; 0.9762
• C) 0.9605; some smaller value
• D) exactly 0.9560
• E) cannot be determined

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