Mathematics
The mean of the following frequency distribution is 62.8. Find the value of p :
| Classes | Frequency |
|---|---|
| 0 - 20 | 5 |
| 20 - 40 | 8 |
| 40 - 60 | p |
| 60 - 80 | 12 |
| 80 - 100 | 7 |
| 100 - 120 | 8 |
Related Questions
Find the value of p, if the mean of the following distribution is 18.
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