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Statistics / Elementary Statistics: A Step by Step Approach 8th ed. 8 / Chapter 4-2 / Problem 22

Elementary Statistics: A Step by Step Approach 8th ed. | 8th Edition | ISBN: 9780073386102 | Authors: Allan G Bluman Professor Emeritus

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Chapter 4, Problem 22

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QUESTION:

Medical Patients A recent study of 300 patients found that of 100 alcoholic patients, 87 had elevated cholesterol levels, and of 200 nonalcoholic patients, 43 had elevated cholesterol levels. If a patient is selected at random, find the probability that the patient is the following. a. An alcoholic with elevated cholesterol level b. A nonalcoholic c. Anonalcoholic with nonelevated cholesterol level

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QUESTION:

Medical Patients A recent study of 300 patients found that of 100 alcoholic patients, 87 had elevated cholesterol levels, and of 200 nonalcoholic patients, 43 had elevated cholesterol levels. If a patient is selected at random, find the probability that the patient is the following. a. An alcoholic with elevated cholesterol level b. A nonalcoholic c. Anonalcoholic with nonelevated cholesterol level

ANSWER:

Step 1 of 4

Now from the given data we can calculate following :

Similarly we can also calculate :

Finally total number of patients can be given as : total number of patients All the data can be summarized with table given below :

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