Question 2:
Consider the following distribution of daily wages of 50 worker of a factory.
Find the mean daily wages of the workers of the factory by using an appropriate method.
Answer:
To find the class mark for each interval, the following relation is used.
Class size (h) of this data = 20
Taking 150 as assured mean (a), di, ui, and fiui can be calculated as follows.
From the table, it can be observed that
Therefore, the mean daily wage of the workers of the factory is Rs 145.20.
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