Following figures relate the weekly wages (in Rs.) of 15 workers in a factory:
300, 250, 200, 250, 200, 150, 350, 200, 250, 200, 150, 300, 150, 200, 250

Prepare a frequency table,

(i) What is the range in wages (in Rs)?
(ii) How many Workers are getting Rs 350?
(iii) How many workers are getting the minimum wages?

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Solution

Frequency distribution of the given weekly wages of 15 workers:

(i) Minimum wage = Rs. 150
Maximum wage = Rs. 350
∴ Range = Maximum wage − Minimum wage
= Rs. 350 − Rs. 150
= Rs. 200
(ii) Numbers of workers getting Rs. 350 = 1 worker

(iii) Here, minimum wage Rs. 150
Number of workers getting Rs. 150 = 3 workers
∴ Number of workers getting minimum wages = 3 workers

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