Answer
a. 0.1842
b. 0.9210
Work Step by Step
a. 7/38= 0.1842
b. 22/38 + 33/38 - 20/38 = 35/38 = 0.9210
Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition
by Bluman, Allan
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 207: 7
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