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

Daily earning (in rupees) 700−750 750−800 800−850 850−900 900−950 950−1000

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 700, a kink, i.e., a break is indicated near the origin to signify that the graph is drawn with a scale beginning at 700 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 Rs):	450−500	500−550	550−600	600−650	650−700
Numbers of stores:	16	10	7	3	1

Year	2010−11	2011−12	2012−13	2013−14	2014−15
Export(in thousand crores rupees)	540	600	750	950	110

Daily sales of a store (in Rs)	0-1000	1000-2000	2000-3000	3000-4000	4000-5000	Total
Number of days in a month	2	12	10	4	2	30

Expenses (in ₹)	500 − 700	700 − 900	900 − 1100	1100 − 1300	1300 − 1500
Number of families	6	8	10	9	7

Daily wages (in rupees)	140−180	180−220	220−260	260−300	300−340	340−380
Number of workers	16	9	12	2	7	4

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Daily earning (in rupees)	700−750	750−800	800−850	850−900	900−950	950−1000
Number of stores	6	9	2	7	11	5