Smoking causes lung cancer. Which of the following is necessary to establish causality for the above claim? a.) Look for cases where correlation between smoking and lung cancer remains while other variables vary. b.) Not considering other possible causes of lung cancer. c.) Keep all variables the same to get duplicate results. d.) Use only an observational study to show that smoking causes lung cancer.
Added by Juan Antonio H.
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) Look for cases where correlation between smoking and lung cancer remains while other variables vary. - This is necessary as it helps to establish that the relationship between smoking and lung cancer is not due to some other variable. b.) Not considering other Show more…
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