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The quality-control inspector of a production plant will reject a batch of syringes if two or more defective syringes are found in a random sample

The quality-control inspector of a production plant will reject a batch of syringes if two or more defective syringes are found in a random sample oftwelvesyringes taken from the batch. Suppose the batch contains1%defectivesyringes.

Find(in terms of the number of syringes)

What is the expected number of defective syringes the inspector will find?

What is the probability that the batch will be accepted?

Find(in terms of the number of syringes)

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