Use graph paper for this question. The daily wages of workers is given below (6)
Wages (Rs.) 30 - 40 40 - 5050 - 60 60 - 70 70 - 80 80 - 90 90 - 100 100 - 110
No. of Workers 6
10 15 19 12 8
6
4
Using a suitable scale, draw an ogive for the distribution. From the graph, find the
(i) median wages (ii) percentage of workers who earn more than Rs. 75 per day
(iii) upper quartile wages of the workers (iv) interquartile range
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