1. The following distribution gives the daily income of 50 workers of a factory.
Convert the distribution above to a less than type cumulative frequency distribution, and draw its ogive.
Daily Income (Upper Class Limit) |
Cumulative Frequency |
Less than 120 | 12 |
Less than 140 | 26 |
Less than 160 | 34 |
Less than 180 | 40 |
Less than 200 | 50 |
Now,
Taking upper class interval on x-axis and their respective frequencies on y-axis,