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 2 - Frequency Distributions and Graphs - 2-2 Histograms, Frequency Polygons, and Ogives - Exercises 2-2 - Page 67: 10


The following figure shows the histograms for each of the data set. Comparing the two histograms, we can see that there were more states in the percentage ranges of 22.5-27.5 and 37.5-42.5 (at or above the required proficiency levels) in math than those in reading. While in the percentage ranges of 17.5-22.5 and 27.5-37.5, the situation is reversed, there were more states doing well in reading than those in math.
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