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Jobathon | Stats | Question 23
Given the following frequency distribution table, find the mean of the data:
| Class Interval | Frequency |
| 10-20 | 5 |
| 20-30 | 12 |
| 30-40 | 20 |
| 40-50 | 18 |
| 50-60 | 8 |
is
(A)
36.9
(B)
32
(C)
63
(D)
39
Answer
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