out of 1000 workers, 10% earn less than rs. 5 per day, 200 earn rs.5-10, 30% earn rs.10-15, 250 workers earn rs 15-20 and the rest of the workers earn rs 20-25 per day. find the mean wage?
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- groups of workers = 100 (10%) workers getting 0 - 5 Rs wage, 200 workers getting 5 - 10 Rs wage 300 (30%) workers getting 10 - 15 Rs wage 250 workers getting 15 - 20 Rs wage 250 (rest) workers getting 20 - 25 Rs wage (Total groups of workers are 5). average of all wages are 0 - 5 = 2.5, 5-10=7.5, 10-15=12.5, 15-20=17.5, 20-25=22.5 add all 2.5+7.5+12.5+17.5+22.5 = 62.5 (x) Mean = x/no. of group of workers = 62.5/5 Answer = 12.5
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