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Q7 7. There are five machines A, B, C, D and E used in a manufacturing...

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Q7
7. There are five machines A, B, C, D and E used in a manufacturing process. In order for the process to work, either A or B must operate and at least two of C, D and E must operate. Machines A and B each operate 92% of the time and machines C, D and E each operate 89% of the time, what is the probability that the process will work if the likelihood of each machine operating is independent of the other four?
7. There are five machines A, B, C, D and E used in a manufacturing process. In order for the process to work, either A or B must operate and at least two of C, D and E must operate. Machines A and B each operate 92% of the time and machines C, D and E each operate 89% of the time, what is the probability that the process will work if the likelihood of each machine operating is independent of the other four?

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