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31-10-2022
Mathematics

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A dietitian believes that eating more leafy green vegetables lowers blood pressure. She asks a group of you and yourfriends to continue eating as you normally do. She asks your brother and his friends to add two servings of spinach totheir daily diet. She records the blood pressure levels of all subjects before and after the diet change. Which group of anexperiment are you part of?-single-blind-confounding-control-experimental

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