| 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?
\(\text{Total frequency} = 50\)
Median occurs at \(\frac{50}{2} = \text{25th position}\)
= Class 20 - 24 with classmark \(\frac{20 + 24}{2} = 22\)
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