The following distribution gives the daily income of 50 workers of a factory Daily income (in - Maths - Statistics

Question

The following distribution gives the daily income of 50 workers
of a factory

Daily income (in Rs)

100 − 120

120 − 140

140 − 160

160 − 180

180 − 200

Number of workers

12

14

8

6

10

Convert the distribution above to a less than type cumulative
frequency distribution, and draw its ogive

Gopal Mohanty · Accepted Answer

The frequency distribution table of less than type is as
follows

Daily income (in Rs)
(upper class limits)

Cumulative frequency

Less than 120

12

Less than 140

12 + 14 = 26

Less than 160

26 + 8 = 34

Less than 180

34 + 6 = 40

Less than 200

40 + 10 = 50

Taking upper class limits of class intervals on x-axis
and their respective frequencies on y-axis, its ogive can be
drawn as follows
<img src=
"https://img-nm%20mnimgs%20com/img/study_content/curr/1/10/9/141/2612/Chapter%2014_html_47610cf7%20jpg"
name="graphics1" align="bottom" width="200" height="199" border=
"0">

Daily income (in Rs)	100 − 120	120 − 140	140 − 160	160 − 180	180 − 200
Number of workers	12	14	8	6	10

Daily income (in Rs) (upper class limits)	Cumulative frequency
Less than 120	12
Less than 140	12 + 14 = 26
Less than 160	26 + 8 = 34
Less than 180	34 + 6 = 40
Less than 200	40 + 10 = 50

The following distribution gives the daily income of 50 workers of a factory. Daily income (in Rs) 100 − 120 120 − 140 140 − 160 160 − 180 180 − 200 Number of workers 12 14 8 6 10 Convert the distribution above to a less than type cumulative frequency distribution, and draw its ogive.