Consider the following distribution of daily wages of 50 workers of a factory. Daily wages (in Rs): 100-120 120-140 140-160 160-180 180-200 Numbers of workers: 12 14 8 6 10 Find the mean daily wages of the workers of the factory by using an appropriate method.

Question

Philoid · Accepted Answer

Let the assumed mean (A) = 150

Class interval	Mid value (x_i)	d_i = x_i - 150	u_i =	Frequency (f_i)	f_iu_i
100 – 120	110	-40	-2	12	-24
120 – 140	130	-20	-1	14	-14
140 – 160	150	0	0	8	0
160 – 180	170	20	1	6	6
180 - 200	190	40	2	10	20
				N = 50	∑f_iu_i = - 12

We have, A = 150

h = 20

Mean = A + h *

= 150 + 20 *

= 150 - = 150 – 4.8

= 145.2

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

Consider the following distribution of daily wages of 50 workers of a factory.Daily wages (in Rs):100-120120-140140-160160-180180-200Numbers of workers:12148610Find the mean daily wages of the workers of the factory by using an appropriate method.

Consider the following distribution of daily wages of 50 workers of a factory.

Daily wages (in Rs):

100-120

120-140

140-160

160-180

180-200

Numbers of workers:

12

14

8

6

10

Find the mean daily wages of the workers of the factory by using an appropriate method.