Bad gums may mean a bad heart. Researchers discovered that 82% of people who have suffered a heart attack had periodontal disease, an inflammation of the gums. Only 29% of people who have not suffered a heart attack have this disease. Suppose that in a certain community heart attacks are quite rare, occurring with only 11% probability. A. If someone has periodontal disease, what is the probability that he or she will have a heart attack? B. If 37% of the people in a community will have a heart attack, what is the probability that a person with periodontal disease will have a heart attack?

Bad gums may mean a bad heart. Researchers discovered that 82% of people who have suffered a heart attack had periodontal disease, an inflammation of the gums. Only 29% of people who have not suffered a heart attack have this disease. Suppose that in a certain community heart attacks are quite rare, occurring with only 11% probability. A. If someone has periodontal disease, what is the probability that he or she will have a heart attack? B. If 37% of the people in a community will have a heart attack, what is the probability that a person with periodontal disease will have a heart attack?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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