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In a population of interest, we know that, 77% drink coffee, and 23% drink tea. Assume...

In a population of interest, we know that, 77% drink coffee, and 23% drink tea. Assume that drinking coffee and tea are disjoint events in this population. We also know coffee drinkers have a 30% chance of smoking. There is a 13% chance of smoking for those who drink tea.

A person is randomly chosen from this population. What is the probability that the person smokes?

Math   Statistics-And-Probability   
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