Elementary Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321836960
ISBN 13: 978-0-32183-696-0

Chapter 5 - Discrete Probability Distributions - 5-2 Probability Distributions - Basic Skills and Concepts - Page 206: 4


Unlikely, not an unusually low number.

Work Step by Step

a) Having exactly 90 girls is unlikely, because 0.0208<0.05 (95 percent level of confidence). b) Having 90 girls is not an unusually low number, because 0.089>0.05 (95 percent level of confidence).
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