The following table shows the average daily earnings of 40 general stores in a market, during a certain week.

Daily earnings (in rupees) 600−650 650−700 700−750 750−800 800−850 850−900

Number of stores 6 9 2 7 11 5

Draw a histogram to represent the above data.

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Solution

The given frequency distribution is in exclusive form.
We will represent the class intervals [daily earnings (in rupees)] along the x-axis & the corresponding frequencies [number of stores] along the y-axis.
The scale is as follows:
On x-axis: 1 big division = 50 rupees
On y-axis: 1 big division = 1 store
Because the scale on the x-axis starts at 600, a kink, i.e., a break is indicated near the origin to signify that the graph is drawn with a scale beginning at 600 and not at the origin.
We will construct rectangles with the class intervals as bases and the corresponding frequencies as heights.
Thus, we will obtain the following histogram:

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Daily earnings (in rupees)	600−650	650−700	700−750	750−800	800−850	850−900
Number of stores	6	9	2	7	11	5