Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 12 - Data Analysis and Probability - Chapter Test - Page 791: 20


50% of the data

Work Step by Step

To find the IQR we find the difference between the 3rd quartile and the 1st quartile. It represents the middle 50% of the data. This is useful, for it gives an accurate description of the data, looking at the middle points and thus excluding outliers in most cases.
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