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A Machine Has 9 Identical Components Which Function Independently

Question 77

Multiple Choice

A machine has 9 identical components which function independently. The probability that a component will fail is 0.2. The machine will stop working if more than three components fail. Find the probability that the machine will be working.


A) 0.086
B) 0.066
C) 0.980
D) 0.914

Correct Answer:

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