Statistics: Informed Decisions Using Data (4th Edition)

Published by Pearson
ISBN 10: 0321757270
ISBN 13: 978-0-32175-727-2

Chapter 5 - Section 5.2 - Assess Your Understanding - Applying the Concepts - Page 278: 38a

Answer

P(only English or only Spanish) $=0.93$

Work Step by Step

The events "a household speaks only English at home" and "household speaks only Spanish at home" are mutually exclusive. So: P(only English or only Spanish) = P(only English) + P(only Spanish) = $0.81+0.12=0.93$
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