Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition

Published by McGraw-Hill Education
ISBN 10: 0078136334
ISBN 13: 978-0-07813-633-7

Chapter 4 - Probability and Counting Rules - 4-2 The Addition Rules for Probability - Exercises 4-2 - Page 208: 22


a. $0.29$ b.$2/3$ c. $0.52$

Work Step by Step

a. An alcoholic with elevated cholesterol level $p=87/300=0.29$ b. A nonalcoholic $p=200/300=2/3$ c. A nonalcoholic with nonelevated cholesterol level $p=(200-43)/300=0.52$
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