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12. In a bag there are 4 blue marbles, 8 red marbles, and 5 orange marbles. If two marbles are drawn without replacement, find the

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12. In a bag there are 4 blue marbles, 8 red marbles, and 5 orange marbles. If two marbles are drawn without replacement, find the probability of (Use proper notation and round to 4 decimal places) (a) both marbles are the same color (b) the second marble being red (c) the first being blue and the second being orange

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