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To estimate the health risks of obesity, we might compare how long obese and nonobese people
live. Smoking is a lurking variable that may reduce the gap between the two groups, because
smoking tends to both reduce weight and lead to earlier death. So if we ignore smoking, we may
underestimate the health risks of obesity. Illustrate Simpson's paradox by a simplified version of
this situation: make up two
Solution
yes

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  • 1. To estimate the health risks of obesity, we might compare how long obese and nonobese people live. Smoking is a lurking variable that may reduce the gap between the two groups, because smoking tends to both reduce weight and lead to earlier death. So if we ignore smoking, we may underestimate the health risks of obesity. Illustrate Simpson's paradox by a simplified version of this situation: make up two Solution yes