No. of Mangoes | 50 - 100 | 100 - 150 | 150 - 200 | 200 - 250 | 250 - 300 |
No. of trees | 33 | 30 | 90 | 80 | 17 |
Class
(Number of working hours) |
Frequency (Number of workers) fi |
Cumulaive frequency less than the upper limit |
50 - 100 | 33 | 33 |
100 - 150 | 30 | 63 |
150 - 200 (Median Class) |
90 | 153 |
200 - 250 | 80 | 233 |
250 - 300 | 17 | 250 |
N = 250 |