Find the mean salary of 60 workers of a factory from the following table:
|
Salary (in Rs) |
Number of workers |
|
3000 |
16 |
|
4000 |
12 |
|
5000 |
10 |
|
6000 |
8 |
|
7000 |
6 |
|
8000 |
4 |
|
9000 |
3 |
|
1000 |
1 |
|
Total |
60 |
|
Salary (xi) |
Number of workers (fi) |
fixi |
| 3000 | 16 | 48000 |
| 4000 | 12 | 48000 |
| 5000 | 10 | 50000 |
| 6000 | 8 | 48000 |
| 7000 | 6 | 42000 |
| 8000 | 4 | 32000 |
| 9000 | 3 | 27000 |
| 10000 | 1 | 10000 |
| Total |
Σfi = 60 | Σfixi = 305000 |
= 5083.33
Therefore, mean salary of 60 workers is Rs 5083.33.
