Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition

Published by McGraw-Hill Education
ISBN 10: 0078136334
ISBN 13: 978-0-07813-633-7

Chapter 6 - The Normal Distribution - Review Exercises - Section 6-2 - Page 362: 10


0.314 and 0.032

Work Step by Step

Given $\mu=217600, \sigma=36400$ what is the probability that a randomly selected home in Raleigh has a price below 200,000? $z(200000)=\frac{200000-217600}{36400}=-0.4835$ The probability left of this z-score is 0.314 Below 150,000? $z(150000)=\frac{150000-217600}{36400}=-1,857$ The probability left of this z-score is 0.032
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