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Question 3: A box contains 12 transistors of type A and 18 of type B, all identical in appearance. If one transistor is taken at

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Question 3: A box contains 12 transistors of type A and 18 of type B, all identical in appearance. If one transistor is taken at random, tested and returned to the box, and a second transistor then treated in the same manner, determine the probability that: (a) the first is type A and the second type B (b) both are type A (c) neither is type A

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