| Age in years | 10 – 14 | 15 – 19 | 20 – 24 | 25 – 29 | 30 – 34 |
| Frequency | 6 | 8 | 14 | 10 | 12 |
In which group is the upper quartile?
- 15 - 19
- 20 - 24
-
25 - 29
- 30 - 34
The correct answer is: C
Explanation
The upper quartile occurs at the \(\frac{3N}{4}\) position.
= \(\frac{3 \times 50}{4} = 37.5\)
This occurs in the class 25 - 29.