Answer
a. $0.332$
b. $0.668$
Work Step by Step
a. None of the 5 was family and children’s
$p=(1-0.198)^5=0.332$
b. At least 1 of the 5 was family and children’s
This is the complement of (a): $1-0.332=0.668$
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 - 4-3 The Multiplication Rules and Conditional Probability - Exercises 4-3 - Page 225: 45
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