Question

The number of casualties due to accidents were recorded in a hospital as follows:

Age (in years)	5 - 15	15 - 25	25 - 35	35 - 45	45 - 55	55 - 65	65 - 75
No. of casualties	6	10	15	13	20	8	7

Draw a frequency polygon on the graph.

Answer 1

Age (in years)	5 - 15	15 - 25	25 - 35	35 - 45	45 - 55	55 - 65	65 - 75
Mid-value	10	20	30	40	50	60	70
No. of casualties	6	10	15	13	20	8	7