Some studies find an association between liver cancer and smoking. However, alcohol consumption is a confounding variable.

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Some studies find an association between liver cancer and smoking. However, alcohol consumption is a confounding variable. This means- (i) Alcohol causes liver cancer. (ii) Drinking is associated with smoking, and alcohol causes liver cancer. Choose one option, and explain briefly. plo47

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Statistics

ISBN: 9780393522105

4th Edition

Authors: David Freedman, Robert Pisani, Roger Purves

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