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    E:\Working\Focus_Learning\Math_Genius_3_(11-09-2024)\Open_Files\CHAP_12
                 \ 11-Sep-2024                      Surender Prajapati   Proof-4              Reader’s Sign _______________________ Date __________

                  Here is the table she drew.

                     Kind of        tally     Number              Project
                      books        marks      of books        Collect the information
                                                                                                                Number
                                                                                                       tally
                    Story           ||||          4           about the number             Children   marks of children
                    Sports           |||          3           of boys and girls in         Only boys

                    Comics       |||| ||||        10          20 families in your          Only girls
                    G.K.          |||||||         8           neighbourhood and fill       Both boys
                                                              the table given below
                    Novels          |||||         6           using tally marks.           and girls

                  PicTograPh

                  When we make use of pictures or symbols to represent information, we call it pictorial

                  representation or pictograph of the given information.
                  A pictograph helps us to compare information.

                  Every pictograph must have the following:
                      •  title: The title tells us what information the pictograph gives.
                      •  Key: The key tells us the meaning and the value of the picture or symbol.

                  Drawing a Pictograph

                  Ritu's mother records the data regarding the number of milk-bottles sold by a milk-booth
                  in a particular week. Ritu wants to represent it using a pictograph.

                   days                              Monday     Tuesday     Wednesday Thursday Friday           Saturday

                   Number of milk- bottles sold          40         60          80           50         30          70
                  To represent the data pictorially, she choose a milk-bottle as a symbol. She assumes the

                  symbol of one milk-bottle   represent 10 milk-bottles.

                  We shall draw (40 ÷ 10) = 4 bottles for selling on Monday, (60 ÷ 10) = 6 bottles on Tuesday,
                  (80 ÷ 10) = 8 bottles on Wednesday and so on.

                  Thus, we have the following pictograph.

                                        Number of milk-bottles sold by a milk-booth in a week

                    Monday

                    Tuesday

                    Wednesday

                 212                                                                                    Mathematics-3

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