Biology (11th Edition)

Published by McGraw-Hill Education
ISBN 10: 1-25918-813-2
ISBN 13: 978-1-25918-813-8

Chapter 21 - The Evidence for Evolution - Figure 21.2 - Data Analysis: 1

Answer

About 9mm

Work Step by Step

The correlation shown is between offspring beak depth and mean beak depth for the parents, and the slope of the line is about 1, so offspring beak depth is about the same as the mean for the two parents=8mm+10mm/2=9mm.
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