The following is the distribution of total household expenditure (in Rs.) of manual worker in a city:
Draw a histogram and a frequency polygon representing the above data.
Answers
The following is the distribution of total household expenditure (in Rs.) of manual worker in a city:
Draw a histogram and a frequency polygon representing the above data.
The complete question is,
Expenditure (in Rs) No. of manual workers
100 - 150 25
150 - 200 40
200 - 250 33
250 - 300 28
300 - 350 30
350 - 400 22
400 - 450 16
450 - 500 8
The class interval is calculated as = 150 - 100 = 200 - 150 = 5
In order to represent the given data in histogram, we need to calculate the height of rectangles and is as shown below,
The height of the rectangle for interval 100 - 150 = 25/5 = 5 units
The height of the rectangle for interval 150 - 200 = 40/5 = 8 units
The height of the rectangle for interval 200 - 250 = 33/5 = 6.6 units
The height of the rectangle for interval 250 - 300 = 28/5 = 5.6 units
The height of the rectangle for interval 300 - 350 = 30/5 = 6 units
The height of the rectangle for interval 350 - 400 = 22/5 = 4.4 units
The height of the rectangle for interval 400 - 450 = 16/5 = 3.2 units
The height of the rectangle for interval 450 - 500 = 8/5 = 1.6 units
The histogram representation of given data is as shown in the figure.
