In a certain process, the probability of producing a defective component is 0.07.
a. In a sample of 250 randomly chosen components, what is the probability that fewer than 20 of them are defective?
b. In a sample of 10 randomly chosen components, what is the probability that one or more of them is defective?
c. To what value must the probability of a defective component be reduced so that only 1% of lots of 250 components contain 20 or more that are defective?
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