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    E:\Working\Orange_Education\TouchPad_Maths_4\Open_Files\Chap_13\Chap_13
                     \ 10-Nov-2025  Bharat Arora   Proof-8                                    Reader’s Sign _______________________ Date __________

                                                Save the Environment projects of Class 4

                              project topics                        tally Marks           number of Students

                              Save Water
                              Save Trees

                              Save Energy                                                            14

                              Reduce Pollution
                              Use Public Transport                                                    5

                                                                                 Total

                       Answer the following questions after completing the table.

                           1.  How many students are there in the class? ____________

                         2.  Which topic is the most popular among the students? ________

                         3.  Which topic is the least popular among the students? ________

                         4.  How many students chose the topic “Save Water”? ________

                         5.  How many more students chose the topic “Reduce Pollution” than the topic
                              “Use Public Transport”? ____________

                    REpRESEnting DAtA

                    Pictographs  and bar graphs are used  to  represent  data.  They help to  present
                    information in a way that is easy to interpret and understand.

                    pictograph

                    When pictures are used to represent information, it is called a pictorial representation.
                    Pictorial representations are known as pictographs.

                    Example 1. The following table  shows the  data  collected  regarding  the  number  of
                    bottles sold by a milk-booth in a particular week. Represent it using a pictograph.

                           Days            Monday       Tuesday      Wednesday       Thursday       Friday      Saturday

                     number of milk
                     bottles sold             40           60             80             50           30            70

                    Solution. To represent the above data pictorially, we choose a milk bottle as a symbol.
                    Let the symbol of one milk bottle represent 10 milk bottles.

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     Mathematics 4                                                                               Data Handling

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