Daily wages of 110 workers, obtained in a survey, are tabulated below
Daily wages (in Rs.) Number of workers
100 - 120 10
120 - 140 15
140 - 160 20
160 - 180 22
180 - 200 18
200 - 220 12
220 - 240 13
Compute the mean daily wages of these workers

Solution:

Given, the survey represents the daily wages and number of workers.

We have to find the mean daily wages of workers.

Mean = ∑fx / ∑fBy direct method,

From the table,

Mean = 18720/110

= 170.20

Therefore, the mean daily wages of the workers is 170.20

✦ Try This: Daily wages of 110 workers, obtained in a survey, are tabulated below:

Compute the mean daily wages of these workers.

☛ Also Check: NCERT Solutions for Class 10 Maths Chapter 14

NCERT Exemplar Class 10 Maths Exercise 13.3 Sample Problem 2

Daily wages of 110 workers, obtained in a survey, are tabulated below: Daily wages (in Rs.) Number of workers 100 - 120 10 120 - 140 15 140 - 160 20 160 - 180 22 180 - 200 18 200 - 220 12 220 - 240 13. Compute the mean daily wages of these workers

Summary:

The mean daily wages of the workers is 170.20

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