Page 219 - AI Ver 1.0 Class 9
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Data Visualisation Technique 3

                 Name of the Representation                                  Pie Chart
                Description                    It is a circular representation of data where each slice shows the relative size
                                               of the data. The data is a complete circle equal to 360° with each segment
                                               and sectors forming a certain portion of the total (percentage).
                How to draw?
                                                                          Market Share
                                                          Agni Tea (6%)                        Lip Tea (4%)

                                                           Tea Lay (6%)
                                                                                                   Red Tea (17%)

                                                     Red Natural Tea (7%)
                                                                                                   Bakri Tea (15%)
                                                         Gold Tea (15%)



                                                                                                   Taj Tea (15%)
                                                      Premium Tea (15%)

                Suitable for which type of data? Suitable for depicting percentage comparison between the different
                                               types of similar items. In this case various brands of tea’s market share
                                               are compared. For example, car varieties sold in a month, choices of most
                                               preferred market for shopping in a city, marks of students in class.



                                                  Data Visualisation Technique 4

                 Name of the Representation                                 Area Chart
                Description                    It is an extension of the line chart with the areas under the line shown shaded.
                How to draw?
                                                            Sector Wise GDP Growth (Rupees in Crore)
                                                            Sector    Agriculture Sector    Industry Sector    Services Sector
                                                 25
                                                 20
                                                   8.46
                                                 15              6.34
                                                 10 7.72         5.86           7.2
                                                  5                             5.31          7.19
                                                                                              –1.23
                                                   6.8           6.61                                        3.63
                                                  0                             2.56          4.31          –6.96
                                                  2016-17       2017-18        2018-19       2019-20        2020-21
                                                 –5
                                                                                                             –8.36
                                                 –10
                                                 –15

                Suitable for which type of data? It is used when you want to show a trend over time and make comparisons.
                                               For example, the most preferred food in a social gathering, most preferred
                                               show to watch in Netflix.





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