Find the semi-interquartile range of 3, 5, 6, 8, 9, 12, 14, 15.
Answer and explanation
Correct answer: C. 3.75
- Step 1: and .
- Step 2: SIQR .
Answer
3.75.
Why not the others: 7.5: this is the whole interquartile range. 6: this is half the range. 5.5: this is the lower quartile.
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