Question

Draw a histogram for the following cumulative frequency table:

Class interval	0 - 10	10 - 20	20 - 30	30 - 40	40 - 50
Cumulative frequency	6	10	18	32	40

Answer 1

We first convert the cumulative frequency table to an exclusive frequency distribution table.

Class interval	0 - 10	10 - 20	20 - 30	30 - 40	40 - 50
Frequency	6	4	8	14	8

We take the class limits on the x-axis and the frequencies on the y-axis on suitable scales. We draw rectangles with the class intervals as bases and the corresponding frequencies as heights.