A lot of 20 articles contains 3 defective ones, suppose that the 2 articles are randomly selected with replacement. What is the probability that a. both are defective? b. neither is defective? c. the first is defective but the second is not?
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The probability that both are defective: Since the selection is with replacement, the probability of selecting a defective article remains the same for both selections. The probability of selecting a defective article is 3/20. Therefore, the probability that both Show more…
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