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    Arranging Data in Tables

                      One of the easiest ways to organise data is by using tables. Tables help you sort and compare
                      data quickly. When data is clearly laid out, it’s much easier to spot patterns and trends.
                      Tables make it easy to:

                       Compare values: You can quickly see which student has the highest or lowest marks in each
                         subject.

                       Identify patterns: Spot trends, such as which students are consistently doing well in both
                         subjects.

                       Prepare data for charts and graphs: You can create charts from tables to better visualise
                         the data.

                                               Example:

                                                 Student Name    Maths Marks     Science Marks
                                                Raj                    85              78

                                                Asha                   92              88

                                                Kiran                  79              90

                      In this example, Asha scored the highest marks in both Maths and Science, while Raj scored the

                      lowest in both subjects. You could also use this table to create a bar chart showing the marks for
                      each student in each subject.

                      Preparing Data for Visualisation

                      Before creating charts or graphs, it’s important to clean and organise the data. If the data is
                      messy  or disorganised,  it  can lead to  incorrect  results or misleading  charts. Clean and well-
                      organised data is key to creating accurate and meaningful visualisations.

                      Here are the steps to clean and organise data:

                       Remove errors or duplicates: Check for mistakes or repeated information. For example, if a
                         student’s name appears twice with different marks, fix that.
                       Fill missing values: If data is missing, add or correct it. For example, if a student’s marks are
                         missing, ask the teacher for the correct score.

                                   Remove errors or       Fill missing        Arrange data       Group related
                                      duplicates            values              in order             items

                      54         Artificial Intelligence (CT & AI)-VII

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