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Now suppose you studied 200 people's blood pressure before and after they quit smoking. Why is the following NOT a good depiction of your data:

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Now suppose you studied 200 people's blood pressure before and after they quit smoking. Why is the following NOT a good depiction of your data: High Blood Pressure Before quitting After quitting Total smoking smoking Yes 80 74 154 No 120 126 246 Total 200 200 400

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