class 10th ncert maths exercise 14.1 question no 6 by step deviation method
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by step deviation method
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Step derivation is hard for this question
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Consider the following distribution of daily wages of 50 workers of a factory.
Find the mean daily wages of the workers of the factory by using an appropriate method.
Ans.
From given data, Assume mean = 150, Width of the class = 20
=
Using formula, Mean = = 150 – 4.8 = 145.2
Hence mean daily wages of the workers of factory is Rs. 145.20.
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