a recent study of 500 patients found that of 300 overweight patients, 240 had elevated cholesterol levels, and of 200 non-overweight patients, 50 had elevated cholesterol levels.  If a patient is selected at random, find the probability that the patient is: Either overweight or has an elevated cholesterol level   Either non-overweight or does not have an elevated cholesterol level

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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a recent study of 500 patients found that of 300 overweight patients, 240 had elevated cholesterol levels, and of 200 non-overweight patients, 50 had elevated cholesterol levels.  If a patient is selected at random, find the probability that the patient is:

Either overweight or has an elevated cholesterol level

 

Either non-overweight or does not have an elevated cholesterol level

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