Mathematics
Calculate the mean, by step-deviation method, for the frequency distribution given below :
| Class-interval | Frequency |
|---|---|
| 0-5 | 6 |
| 5-10 | 14 |
| 10-15 | 30 |
| 15-20 | 48 |
| 20-25 | 32 |
| 25-30 | 16 |
| 30-35 | 10 |
| 35-40 | 4 |
Calculate the mean, by step-deviation method, for the frequency distribution given below :
| Class-interval | Frequency |
|---|---|
| 0-5 | 6 |
| 5-10 | 14 |
| 10-15 | 30 |
| 15-20 | 48 |
| 20-25 | 32 |
| 25-30 | 16 |
| 30-35 | 10 |
| 35-40 | 4 |
