| Class: | 3-6 | 6-9 | 9-12 | 12-15 | 15-18 | 18-21 | 21-24 |
| No. of students: | 2 | 5 | 10 | 23 | 21 | 12 | 3 |
Answer:
Since the class 12-15 has maximum frequency. Therefore,
this is modal class.
We have
and
Mode
Hence Mode 
.
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