The Basic Practice of Statistics 7th Edition

Published by W. H. Freeman
ISBN 10: 146414253X
ISBN 13: 978-1-46414-253-6

Chapter 3 - The Normal Distributions - Apply Your Knowledge - Page 90: 3.11b

Answer

96.16%

Work Step by Step

First, find the z scores that correspond with each value using the z score formula. Then find the area in Table A corresponding to each z score. Finally, subtract the smallest area from the largest area to find the area in between those values. Multiply by 100 to turn the proportion into a percentage.
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