The following table 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

Question

Philoid · Accepted Answer

Class interval	Mid value(x)	Frequency(f)	fx	Cumulative frequency
100-120	110	12	1320	12
120-140	130	14	1820	26
140-160	150	8	1200	34
160-180	170	6	1000	40
180-200	190	10	1900	50
Total		N=50

Mean= =

We have, N= 50,

N/2 = 25

Hence, medium class =120-140, such that

l=120, f’=14, f=12, h=20

Median = l +

Here, we may observe that maximum class frequency is 14 belonging to the class interval 120-140

So, modal class= 120-140

Lower limit, l= 120

f₀=12, f₂=8, f=14,h = 20

=

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

The following table gives the daily income of 50 workers of a factory:Daily income (in Rs):100-120120-140140-160160-180180-200Number of workers:12148610

The following table 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