| Class | 3-6 | 6-9 | 9-12 | 12-15 | 15-18 | 18-21 | 21-24 |
| Frequency | 2 | 5 | 10 | 23 | 21 | 12 | 3 |
A) 13.5
B) 15.2
C) 14.6
D) 12.3
E) None of these
Correct Answer: C
Solution :
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