Class interval | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 |
Frequency | 5 | 18 | 15 | P | 6 |
Answer:
We have,
Here andusing
direct method
Mean,
(1/2)
(1)
Hence,
Class interval
Frequency
Mid-value
0-10
10-20
20-30
30-40
40-50
5
18
15
6
5
15
25
35
45
25
270
375
25
270
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