Elementary Statistics: Picturing the World (6th Edition)

Published by Pearson
ISBN 10: 0-32191-121-0
ISBN 13: 978-0-32191-121-6

Chapter 5 - Normal Probability Distributions - Review Exercises - Page 286: 14

Answer

Answer: 0.7902

Work Step by Step

Want to find P( -1.55 < z < 1.04): 1) Find P(z < -1.55) = 0.0606 2) Find P( z > 1.04) = 1 - 0.8508 = 0.1492 3) Remember the area of the curve is equal to 1, so the area between P(-1.55 < z < 1.04 ) is : 1 - (0.0606 + 0.1492) = 0.7902
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