| Class Interval | 50-70 | 70-90 | 90-110 | 110-130 | 130-150 | 150-170 |
| Frequency | 18 | 12 | 13 | 27 | 8 | 22 |
A) 112.2
B) 113.2
C) 114.5
D) 115.3
E) None of these
Correct Answer: A
Solution :
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