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A box contains 12 transistors, 4 of which are defective. If 4 are selected at random, find the probability of the statements below.a. All are

A box contains 12 transistors, 4 of which are defective. If 4 are selected at random, find the probability of the statements below.a. All are defectiveb. None are defectivea. The probability is(Type a fraction. Simplify your answer.)

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