Page 172 - Robotics and AI class 10
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Data Visualisation Technique 5

          Name of the Representation                                 Pie Charts
         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 6
          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
                                                                                       7.19
                                           5                             5.31          –1.23
                                             6.8          6.61           2.56                       3.63
                                           0                                           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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