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quality-control inspector of a production plant will reject a batch of syringes if two or more...

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 of ten syringes taken from the batch. Suppose the batch contains 5% defective syringes.

(a) What is the expected number of defective syringes the inspector will find? (Enter a number. Enter your answer to two decimal places.)

(b) What is the probability that the batch will be accepted? (Enter a number. Round your answer to three decimal places.)

(c)Find σ (in terms of the number of syringes). (Enter a number. Round your answer to three decimal places.)

Math   Statistics-And-Probability   
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