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.
(Upper Class Limit)
|Less than 120||12|
|Less than 140||26|
|Less than 160||34|
|Less than 180||40|
|Less than 200||50|
Taking upper class interval on x-axis and their respective frequencies on y-axis,