Page 170 - Robotics and AI class 10
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Different Ways to Visualise Data
        The following are some of the different ways to visualise data:

                                            Data Visualisation Technique 1
          Name of the Representation                                 Bar Graphs

         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                                 Histogram

         Description                    Graphs are similar  to Bar Graphs, that represent categorical data  with
                                        rectangular bars with heights and length proportional to the values that
                                        they represent placed grouped together.

         How to draw?
                                             500
                                                                 Sales of Refrigerators
                                             450
                                             400
                                             350
                                            Sales in CR.  300

                                             250
                                             200
                                             100
                                              50
                                               0
                                                     LG      SAMSUNG   WHIRLPOOL    HAIER    GODREJ
                                                                         Brands


         Suitable for which type of data? It is used to compare things between different groups or to track changes
                                        over time.
                                        Example: Sale of Refrigerators over the period of time, rise in population in
                                        five years,changing fuel price every month.

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