Draw histograms for the following frequency distributions :

Class interval	Frequency
0 - 10	12
10 - 20	20
20 - 30	26
30 - 40	18
40 - 50	10
50 - 60	6

Steps of construction of histogram :

1. Take 2 cm along x-axis = 10 units.

2. Take 1 cm along y-axis = 5 units.

3. Construct rectangles corresponding to the above continuous frequency distribution table.

The required histogram is shown in the below figure: