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A student goes to the university library. The probability that the student checks out the textbook...

A student goes to the university library. The probability that the student checks out the textbook for the statistics class is 0.40; the probability that the student checks out the solutions manual is 0.30; and the probability that the student checks out both the textbook and solutions manual is 0.20. What is the probability that the student checks out the textbook and the solutions manual

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