Does smoking cause lung cancer? A case on causation v.s. correlation

The debate was neither tobacco nor cancer. It was the word “cause”. Many people smoke their whole lives and never get lung cancer. Some get it without lighting up a single cigarette. Previously when we discussed RCT, we know that it is an excellent way to establish a causal relationship. However, we cannot randomly assign … Continue reading Does smoking cause lung cancer? A case on causation v.s. correlation