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Suppose it is known that there is a 25% chance a student gets an A on an exam. Also suppose that the probability they pass

Suppose it is known that there is a 25% chance a student gets an A on an exam. Also suppose that the probability they pass the class, given they get an A on the exam is 70%. meanwhile, there is 50% chance they do not. pass the class given they do not get an A on the exam. Answer using a probability tree.

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