Elementary Statistics (12th Edition)

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

Chapter 3 - Statistics for Describing, Exploring, and Comparing Data - 3-4 Measures of Relative Standing and Boxplots - Basic Skills and Concepts: 21

Answer

$P_{60}$=251 sec.

Work Step by Step

$P_{60}$ is the value where 60 % of the values are smaller than $P_{60}$. 60% of the data here is: $24\cdot0.6=14.4$, therefore $P_{60}$ is the 15th value (the first integer at least 14.4), which is 251 sec..
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