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: 3.11a

Answer

1.9%

Work Step by Step

You will first want to find the z score that corresponds with 697 mm of rain. To find z, plug 697 as x into formula: z = x - mean / standard deviation z = 697 - 852 / 82 = -2.07 Find the corresponding area in Table A. Multiply area by 1 to convert proportion into percentage.
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