Correlation does not imply causation
Does lung cancer cause smoking?
Published in
5 min readAug 11, 2019
Smoking cigarettes, as we know today, causes lung cancer. However, that fact was not entirely clear in the 1950s, when the first studies showing a correlation between smoking and lung cancer were published. One of the skeptics was statistician R.A. Fisher, who reasoned that the causality could be the other way around:
