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    EXPLORING DATA IN

                                       2                                           OUR WORLD

                      PRIMARY PREVIEW

                         Data vs Information                                            Numeric and Textual Data
                         Questionnaires                                                 Tables & Categories
                         Bar and Line Graphs

                      Data is a collection of raw and unorganised facts, such as numbers, words, pictures
                      or measurements.  By  itself,  data  does  not  have much  meaning.  It needs  to  be

                      arranged and understood properly to become useful. When data is organised in a
                      meaningful way, it is called information.

                      DATA VS INFORMATION

                      Data means raw facts or figures that are not arranged in any order. These can be

                      numbers, words, pictures or measurements. When data is not organised, it does
                      not have a clear meaning. To make it useful, we need to arrange and understand it.
                      Without this, data is just a group of numbers, words or symbols.

                      There are two main types of data:

                        Quantitative data: This type of data is about numbers that we can measure. For
                         example, height, weight or age.

                        Qualitative data: This type of data is not about numbers. It includes opinions,
                         descriptions or categories. For example, how a student feels about a subject or

                         how good a product is.

                       22        Artificial Intelligence (CT & AI)-IV

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