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2.5.2. Spike is not a terribly bright student. His chances of passing chemistry are 0.35; mathematics, 0.40; and both 0.12. Are the events Spike passes

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2.5.2. Spike is not a terribly bright student. His chances of passing chemistry are 0.35; mathematics, 0.40; and both 0.12. Are the events "Spike passes chemistry" and "Spike passes mathematics" independent? What is the probabil- ity that he fails both subjects

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