Question: 1. When a particular machine is functioning properly, 80% of the items produced are non-defective. If three items are examined, what is the probability that

1. When a particular machine is functioning properly, 80% of the items produced are non-defective. If three items are examined, what is the probability that none is non- defective? Use the binomial probability function to answer this question.

2.When a particular machine is functioning properly, 80% of the items produced are non-defective. If three items are examined, what is the probability that at most one is non- defective? Use the binomial probability function to answer this question.

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