The Basic Practice of Statistics 7th Edition

Published by W. H. Freeman
ISBN 10: 1-46414-253-X
ISBN 13: 978-1-46414-253-6

Chapter 3 - The Normal Distributions - Apply Your Knowledge - Page 78: 3.2d



Work Step by Step

$ 5-1-1 = 3$ (distance of trail more than one mile from either road) $3 * .2 = .6 (60 $percent$)$ (distance of trail * height under curve)
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