Statistics: Informed Decisions Using Data (4th Edition)

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

Chapter 6 - Section 6.2 - Assess Your Understanding - Vocabulary and Skill Building - Page 344: 30c

Answer

Mean: $μ_X=4$ Standard deviation: $σ_X=1.414$

Work Step by Step

Mean: $μ_X=np=8×0.5=4$ Standard deviation: $σ_X=\sqrt {np(1−p)}=\sqrt {8\times0.5(1-0.5)}=\sqrt {8\times0.5\times0.5}=1.414$
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