A doctor is studying cholesterol readings in his patients. After reviewing the cholesterol readings, he calls the
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A doctor is studying cholesterol readings in his patients. After reviewing the cholesterol readings, he calls the patients with the highest cholesterol readings (the top 5% of readings in his office) and asks them to come back to discuss cholesterol-lowering methods. When he tests these patients a second time, the average cholesterol readings tended to have gone down somewhat. Explain what statistical phenomenon might have been partly responsible for this lowering of the readings.
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Related Book For
Essential Statistics
ISBN: 9780134134406
2nd Edition
Authors: Robert Gould, Colleen N. Ryan, Rebecca Wong
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