The Basic Practice of Statistics 7th Edition

Published by W. H. Freeman
ISBN 10: 146414253X
ISBN 13: 978-1-46414-253-6

Chapter 2 - Describing Distributions with Numbers - Check Your Skills - Page 67: 2.19

Answer

(a) 25%

Work Step by Step

The third quartile is the median of all observations whose position in the ordered list is to the right of the location of the overall median. The third quartile is larger than 75% of the observations, so 25% of the total observations will be larger than the third quartile.
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