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Cholesterol ≤ 200 60 50 110

Cholesterol > 200 40 50 90

100 100 200

We’ll call event A “cholesterol ≤ 200” and event B “took the drug”…..

What is the probability a person’s cholesterol ≤ 200? P(A)

What is the probability a person took the drug? P(B)

What is the product of these two probabilities (multiply the above together)?

P(A) * P(B)

Given that a person took the cholesterol drug, what is the probability that their cholesterol ≤ 200? P(A|B)

Does P(A) * P(B) = P(A|B)?

Are these events independent?

What does this tell us about the effectiveness of the drug?

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# Homework Help: What is the probability a person’s cholesterol

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