| Height (m) | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| No. of plants | 10 | 5 | 7 | 12 | 4 | 6 | 8 |
A) 25.6
B) 17.87
C) 23.3
D) 15.24
E) None of these
Correct Answer: B
Solution :
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