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The mathematics department of a college has 12 male professors, 15 female professors, 9 male teaching assistants, and 10 female teaching assistants. If a

The mathematics department of a college has 12 male professors, 15 female professors, 9 male teaching assistants, and 10 female teaching assistants. If a person is selected at random from the group, find the probability that the selected person is a teaching assistant or a female. The probability is (Type an integer or a fraction. Simplify your answer.)

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