Question 36
Measures of DispersionFind the first quartile of 7, 8, 7, 9, 11, 8, 7, 9, 6, and 8.
- A.8.5
- B.7.0
- C.7.5
- D.8.0
Show the answer and explanation
Answer: B (7.0)
Explanation
In order: 6, 7, 7, 7, 8, 8, 8, 9, 9, 11. The lower quartile is the middle of the lower half (6, 7, 7, 7, 8), which is 7.