Elementary Statistics (12th Edition)

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

Chapter 4 - Probability - Review - Review Exercises - Page 187: 12


a)0.65 b)0.015 c)Very unlikely.

Work Step by Step

a)Here we can use the complement rule: P(not blue)=1-P(blue)=1-35%=1-0.35=0.65. b) The probability of having blue eyes are independent, hence we can us the multiplication rule: P(all eyes are blue)=$0.35^4=0.015.$ c) By using the result of b), it is very unlikely to select 4 people randomly and all of their eyes to be blue.
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