Thinking Mathematically (6th Edition)

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

Chapter 12 - Statistics - 12.4 The Normal Distribution - Exercise Set 12.4 - Page 813: 6

Answer

$80$

Work Step by Step

According to the text, the answer is: $100-(1)\cdot20=80$
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