Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 12 - Statistics - 12.5 Problem Solving with the Normal Distribution - Exercise Set 12.5 - Page 820: 6

Answer

See below.

Work Step by Step

a) Using the table, the percentage of data items in a normal distribution that lie below it: $34.46\%$. b) Using part a), the percentage of data items in a normal distribution that lie above it: $100\%-34.46\%=65.54\%$.
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