| Age | 0-6 | 6-12 | 12-18 | 18-24 | 24-30 | 30-36 | 36-42 |
| Frequency | 6 | 11 | 25 | 35 | 18 | 12 | 6 |
A) \[20.22\]
B) \[19.47\]
C) \[21.12\]
D) \[20.14\]
Correct Answer: A
Solution :
Since, maximum class frequency is 35, so the mode class is\[18-24\]. Now, Mode \[=l+\left( \frac{{{f}_{1}}-{{f}_{0}}}{2{{f}_{1}}-{{f}_{0}}-{{f}_{2}}} \right)\times h\] \[=18+\left( \frac{35-25}{2\times 35-25-18} \right)\times 6=18+2.22=20.22\]
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