Mathematics
Find the numerical value of x, if the mean of the following frequency distribution is 12.58.
| Variate | Frequency |
|---|---|
| 5 | 2 |
| 8 | 5 |
| 10 | 8 |
| 12 | 22 |
| x | 7 |
| 20 | 4 |
| 25 | 2 |
Related Questions
If the mean of the following distribution is 7.5, find the missing frequency f :
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