If the first quartile is 6 and the third quartile is 18, what is the semi-interquartile range?
Correct answer: B. 6
- A. 5
- B. 6
- C. 12
- D. 24
Explanation
The semi-interquartile range is half the difference between the third and first quartiles. Thus, it is (18 minus 6) divided by 2, or 6.
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