Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 11 Data Analysis and Statistics - 11.3 Use Normal Distributions - Guided Practice for Examples 1 and 2 - Page 758: 5



Work Step by Step

The normal distribution is symmetric about the mean, thus using the 68-95-99.7 rule and the graph we get: $P(x\leq\overline{x}-3\sigma)=0.15\%$
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