Answer
Let A and B be two events defined in a sample space. The union of events A and B is the collection of all outcomes that belong either to A or to B or to both A and B.
Work Step by Step
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Introductory Statistics 9th Edition
by Mann, Prem S.
Published by
Wiley
ISBN 10:
1-11905-571-7
ISBN 13:
978-1-11905-571-6
Chapter 4 - Section 4.5 - Union of Events and the Addition Rule - Exercises - Page 161: 4.66
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