Age |
No. of persons |
Midvalue |
Total |
25 – 30 |
6 |
27.5 |
165 |
30 – 35 |
14 |
32.5 |
455 |
35 – 40 |
16 |
37.5 |
600 |
40 – 45 |
22 |
‘42.5 |
935 |
45 – 50 |
5 |
47.5 |
237.5 |
50 – 55 |
4 |
52.5 |
210 |
55 – 60 |
3 |
57.5 |
172.5 |
Total |
70 |
|
2775 |
Mean age = \(\frac{Total\,age}{No\,of\,persons}\)
= \(\frac{2775}{70}\) = 39.64