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2.5 points Save Answer QUESTION 18 A doctor is studying the effects that the amount of junk food has on blood pressure. As each
2.5 points Save Answer QUESTION 18 A doctor is studying the effects that the amount of junk food has on blood pressure. As each patient enters his office, he/she fills out a survey about junk food. The doctor then takes the blood pressure of each patient. Is this an experimental or observational study? Explain your reasoning.
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