Question

The annual profits earned by 30 shops of a shopping complex in a locality give rise to the following distribution:

Profit (in lakhs)	No. of Shops	Profit (in lakhs)	No. of shops
More than or equal to 5	30	More than or equal to 25	10
More than or equal to 10	28	More than or equal to 30	7
More than or equal to 15	16	More than or equal to 35	3
More than or equal to 20	14

Draw both ogives for the above data and hence obtain the median.

 

Answer 1

Profit	No. of Shops	Class Interval	Frequency	Profit	No. of Shops
More than or equal to 5	30	5-10	2	less than 10	2
More than or equal to 10	28	10-15	12	less than 15	14
More than or equal to 15	16	15-20	2	less than 20	16
More than or equal to 20	14	20-25	4	less than 25	20
More than or equal to 25	10	25-30	3	less than 30	23
More than or equal to 30	7	30-35	4	less than 35	27
More than or equal to 35	3	35-40	3	less than 40	30