Answer
c
Work Step by Step
The first quartile is the median of the observations that are less than the median, therefore approximately 25% of the values in a ranked data set are less than the first quartile, and about 75% are greater than it.
Introductory Statistics 9th Edition
by Mann, Prem S.
Published by
Wiley
ISBN 10:
1-11905-571-7
ISBN 13:
978-1-11905-571-6
Chapter 3 - Self-Review Test - Page 123: 12
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