Marks (More than) | 0 | 10 | 20 | 30 | 40 | 50 |
No. of Students | 100 | 88 | 70 | 43 | 23 | 6 |
Marks | Mid Value (m) |
f | fm |
0 − 10 10 − 20 20 − 30 30 − 40 40 − 50 50 − 60 |
5 15 25 35 45 55 |
100 − 88 = 12 88 − 70 = 18 70 − 43 = 27 43 − 23 = 20 23 − 6 = 17 6 |
60 270 675 700 765 330 |
Σf = 100 | Σfm = 2800 |