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answer all the questions 5. A box contains 18 light bulbs. Of these, four are defective. Five bulbs are chosen at random. a) Use permutations

answer all the questions

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5. A box contains 18 light bulbs. Of these, four are defective. Five bulbs are chosen at random. a) Use permutations or combinations to find the probability that none are defective. b) What is the probability that exactly one of the chosen bulbs is defective? c) What is the probability that at least one of the chosen bulbs is defective

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