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The table on the shows 30 workers sorte...

The table on the shows 30 workers sorted according to their daily wages.a) What do we take as the mean daily wag- es of the four workers earning wages between 300 rupees and 400 rupees?
b) According to this, what is the total daily wages of the workers in the class.
c) Making such assumptions, calculate the total wages of workers in other classes also.
d) Calculate the mean daily wages for the entire group: `

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