Question

Draw a histogram and estimate the mode for the following frequency distribution:

Class	0 – 10	10 – 20	20 – 30	30 – 40	40 – 50	50 – 60
Frequency	2	8	10	5	4	3

Answer 1

Draw a histogram

1. In the highest rectangle which represents modal class draw two lines AC and BD intersecting at P. 
2. From P, draw a perpendicular to the x-axis meeting at Q.
3. Value of Q is the mode = 23.