Page 218 - AI Ver 1.0 Class 9
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Different Ways to Visualise Data
The following are the different ways to visualise data:
Data Visualisation Technique 1
Name of the Representation Bar Chart
Description Graph that represents categorical data with rectangular bars with heights
and length proportional to the values that they represent.
How to draw?
Sale 2019–20 in Lacs
Two Wheelers 174.16
Three Wheelers 6.37
Commercial Vehicles 7.18
Passenger Vehicles 27.74
0.00 50.00 100.00 150.00 200.00
Suitable for which type of data? It is used to compare things between different groups or to track changes
over time. For example, marks of 5 subjects to compare, rise in population
in five years and changing fuel price every month.
Data Visualisation Technique 2
Name of the Representation Line Chart
Description It is a graph that uses lines to connect individual data points. A line graph
displays quantitative values over a specified time interval.
How to draw?
Literacy Rate of India
80.0
73.0
70.0 64.8
60.0
52.2
50.0
43.6
40.0
34.5
30.0 28.3
20.0 18.3
10.0
0.0
1951 1961 1971 1981 1991 2001 2011
Suitable for which type of data? It is most suitable for continuous data to identify a trend or pattern in
your data. For example, changing fuel price, daily profit earned by a
shopkeeper, etc.
216 Touchpad Artificial Intelligence-IX

