When circuit boards used in the manufacture of compactdisc
Chapter 4, Problem 104(choose chapter or problem)
When circuit boards used in the manufacture of compactdisc players are tested, the long-run percentage of defectivesis 5%. Suppose that a batch of 250 boards has beenreceived and that the condition of any particular board isindependent of that of any other board.a. What is the approximate probability that at least 10%of the boards in the batch are defective?b. What is the approximate probability that there areexactly 10 defectives in the batch?
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