Suppose That You Have a System with One Component and Two

question 46

Multiple Choice

Suppose that you have a system with one component and two backups.What is the formula for the reliability of the system?

• A)P(1^st works)+ [P(1^st fails)][P(2^nd works)] + [P(1^st fails)][P(3^rd works)]
• B)[P(1^st works)][P(2^nd works)][P(3^rd works)]
• C)[P(1^st works)] + [P(2^nd works)] + [P(3^rd works)]
• D)P(1^st works)+ [1 - P(1^st fails)][P(2^nd works)] + [1 - P(1^st fails)][P(3^rd works)]
• E)1 - [P(1^st fails)][P(2^nd fails)][P(3^rd fails)]

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