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The salaries of 100 workers of a factory are given below : `{:("Salary (in Rs.)","Number of Workers"),(6000,40),(8000,25),(10000,12):}` ltimg Find the mean salaries of the workers of the factory .

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The mean `barx` is given by :
`barx = ((6000 xx 40) + (8000 xx 25) + (10000 xx 12) + (12000 xx 10) + (15000 xx 8) + (20000 xx 4) + (25000 xx1))/(40 + 25 + 12 + 10 + 8 + 4 + 1)`
`implies barx` = ₹ 9050.

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