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Last updated at Sept. 22, 2018 by Teachoo
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Ex 14.4, 5 Find the mean salary of 60 workers of a factory from the following table: Salary (in Rs) Number of workers 3000 16 4000 12 5000 10 6000 8 7000 6 8000 4 9000 3 10000 1 Total 60 3000 ร 16 = 48000 4000 ร 12 = 48000 5000 ร 10 = 50000 6000 ร 8 = 48000 7000 ร 6 = 42000 8000 ร 4 = 32000 9000 ร 3 = 27000 10000 ร 1 = 10000 โโ๐i๐ฅi = 305000 Mean(๐ฅย ฬ ) = (โโ๐๐๐ฅ๐ " " )/(โโ๐๐ " " ) "= " 305000/60 = 5083.33
Ex 14.4
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