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Find the mean daily wages of the workers of the factory by using an appropriate method.
Asked by Yatheesh Last Modified
Answer 
Abhay
To find the class mark for each interval, the following relation is used.
Class size (h) of this data = 20
Taking 550 as assured mean (a), di, ui, and fiui can be calculated as follows.
From the table, it can be observed that
= 545.2
Therefore, the mean daily wage of the workers of the factory is Rs 545.20.
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find xi as Class mark = (Upper class limit + Lower class limit)/ 2 , for each i.
add all fi values i.e
next find fixi
next add all fixi values i.e
substitute above values in formula
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Rakhi Sahani
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