Question: A manufacturer has three machine operators A, B and C. The first operator A produce 1% defective items, whereas the other two operators B and

A manufacturer has three machine operators A, B and C. The first operator A produce 1% defective items, whereas the other two operators B and C produce 5% and 7% defective items respectively. A is on the job for 50% of the time, B is on the job for 30% of the time. A defective item is produced, what is the probability that it was produced by A, B, C? Based on this write your observations. [3 Marks]

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