CBSE Class 10 Maths (Basic) 2020 · Paper 430/3/1 · Question 40
Find the mean of the following data :
| Class | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 | 50-60 | 60-70 |
|---|---|---|---|---|---|---|---|
| Frequency | 5 | 10 | 18 | 30 | 20 | 12 | 5 |
Answer
Mean .
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