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 - 2-1 Organizing Data - Exercises 2-1 - Page 53: 26

Answer

The graph for frequency distribution with 7 classes is shown below.

Work Step by Step

Data range: $37.9-17.3=20.6$ Bin width (7 classes): $\frac{20.6}{7}=2.94\approx3$ Start point for bin 1: $17.25$ to avoid any data fall on bin walls Count the frequency in each bin and plot the data.
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