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

145.2

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155.2

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135.2

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180.2

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Solution

The correct option is A 145.2

Daily
wages (in Rs.) [Class Intervals] Number of
workers [ Fi]
Xi Xi*Fi

100-120 12 110 1320

120-140 14 130 1820

140-160 8 150 1200

160-180 6 170 1020

180-200 10 190 1900

Total 40 5360
$M e a n d a i l y w a g e = \frac{\sum f_{i} x_{i}}{\sum f_{i}} = \frac{7260}{50} = R s .145 .2$

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Similar questions

Q. 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
Number of workers	12	14	8	6	10

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

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

Daily wages (in Rs)	500-520	520-540	540-560	560-580	580-600
Number of workers	12	14	8	6	10

Find 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.

$\begin{matrix} Daily wages (in Rs) & 100 - 120 & 120 - 140 & 140 - 160 & 160 - 180 & 180 - 200 Number of workers & 12 & 14 & 8 & 6 & 10 \end{matrix}$

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

Question 2
Consider the following distribution of daily wages of 50 worker of a factory.

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Daily wages (in Rs.) [Class Intervals]	Number of workers [ Fi]	Xi Xi*Fi
100-120	12	110	1320
120-140	14	130	1820
140-160	8	150	1200
160-180	6	170	1020
180-200	10	190	1900
Total	40		5360

Consider the following distribution of daily wages of 50 workers of a factory.Daily wages (in Rs.)Number of workers100-12012120-14014140-1608160-1806180-20010Find the mean daily wages of the workers of the factory by using an appropriate method.

The correct option is A 145.2 Daily wages (in Rs.) [Class Intervals] Number of workers [ Fi] Xi Xi*Fi 100-120 12 110 1320 120-140 14 130 1820 140-160 8 150 1200 160-180 6 170 1020 180-200 10 190 1900 Total 40 5360 Meandailywage=∑fixi∑fi=726050=Rs.145.2

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