Math 2 Quiz
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STATISTICS & PROBABILITY
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A medical study tracks three risk factors for a disease: smoking (S), obesity (O), and high blood pressure (H). In a population of 1000 people, 320 have factor S, 280 have factor O, 250 have factor H, 120 have both S and O, 90 have both S and H, 110 have both O and H, and 40 have all three factors. If a person is selected randomly from this population, what is the probability that they have at least one of these risk factors?
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