| Age in years | 10 – 14 | 15 – 19 | 20 – 24 | 25 – 29 | 30 – 34 |
| Frequency | 6 | 8 | 14 | 10 | 12 |
What is the class mark of the median class?
- 17
-
22
- 27
- 32
The correct answer is: B
Explanation
\(\text{Total frequency} = 50\)
Median occurs at \(\frac{50}{2} = \text{25th position}\)
= Class 20 - 24 with classmark \(\frac{20 + 24}{2} = 22\)