Answer
$49.85\%$
Work Step by Step
According to the $68–95–99.7$ Rule and the graph $99.7\%/2=49.85\%$ of people paid between the given amounts.
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
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: 18
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