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The manager of a store buys marine radios in lots of 48 . Suppose that, on the average, 2 out of each group of 48

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The manager of a store buys marine radios in lots of 48 . Suppose that, on the average, 2 out of each group of 48 are defective. The manager randomly selects 4 radios out of the group to test. Assume independence. (Round your answers to 4 decimal places.) (a) What is the probability that he will find 2 defective radios? (b) What is the probability that he will find no defective radios? x

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