A system has three components in parallel with reliabilities 0.9, 0.7, and 0.6. What is the system reliability?
A) 0.378
B) 0.733
C) 0.988
D) 0.985
E) 2.200

Question

Quizplus · Accepted Answer

To find the system reliability of parallel components, we use the formula R_sys = 1 − ((1 − R_1)(1 − R_2)(1 − R_3)). Plugging in the given component reliabilities, we get R_sys = 1 − ((1 − 0.9)(1 − 0.7)(1 − 0.6)) = 0.988. Therefore, the best choice is C.

A System Has Three Components in Parallel with Reliabilities 0