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The middle value of the lower half of an ordered data set is the:
AFirst quartile
BFixed quartile
CFinal quartile
DFifth quartile
Answer & Solution
Correct answer: A. First quartile
1. The median splits the data into two halves.
2. Taking the middle of the lower half cuts again at one quarter.
3. That value is the first quartile.
_Source: OpenStax Introductory Statistics 2e, Chapter 2, Descriptive Statistics._
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