Consider a situation where we look at people who do not smoke

Statistics Oct 26, 2020

Consider a situation where we look at people who do not smoke. Suppose 20% of such people are exposed to second-hand smoke. Of those exposed, 40% eventually have some sort of breathing problem. Of those not exposed, 10% eventually have some sort of breathing problem. Draw a tree diagram to demonstrate this, and calculate the probabilities of the four possible endpoints.