CBSE Class 10 Maths (Standard) 2019 · Paper 30/4/2 · Question 29(a)
Calculate the mean of the following frequency distribution.
| Class | Frequency |
|---|---|
| 10 - 30 | 5 |
| 30 - 50 | 8 |
| 50 - 70 | 12 |
| 70 - 90 | 20 |
| 90 - 110 | 3 |
| 110 - 130 | 2 |
Answer
Mean of the distribution .
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