Question:
Which of the following is equivalent to the lower quartile?
Choices:
A. 1st quartile
B. 5th decile
C. 75th percentile
D. 85th percentile
Answer:
Explanation:
- 1st quartile is equivalent to the lower quartile. The first quartile (or lower quartile), Q1, is defined as the value that has an f-value equal to 0.25. This is the same thing as the twenty-fifth percentile. The third quartile (or upper quartile), Q3, has an f-value equal to 0.75. The interquartile range, IQR, is defined as Q3-Q1.
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