Page 160 - Maths Skill - 6
P. 160

158                                                                                                  Maths














                                                    MIND MAP





                                    Data Handling and Presentation





                                     Process of Study, Arrange or Sort the Data








           Frequency Distribution                       Pictograph                            Bar Graph
           Table                              “A pictograph represents the           “A bar graph is a pictorial
           “A tabular arrangement             frequency  of  data  as  pictures      representation     used    to
                                              or symbols”
                                                                                     compare the amounts or
           of the ungrouped data”                                                    frequency of occurrence of
           It    consists     numeric         Step 1:  Collect  the  data  and       different  characteristics  of
                                                       choose  a  symbol  to


           representation of the data                  represent it                  data”
           It consists                        Step 2:  Decide the appropriate        Step 1:  On  a  graph  paper,
                  rows                                 scale                                  draw      horizontal

                  columns                     Step 3:  Add  the  labels  of  the               line  (x-axis)  and
                                                                                              vertical line (y-axis)
                  cells                                data to the vertical line
                                                       of the table or group         Step 2:  Mark     points   at

                                              Step 4:  Add     the    required                 equal     intervals
                                                                                              along horizontal line
                                                       number  of  symbols
                                                       from the symbol key           Step 3:  Choose  a  suitable

                                              Step 5:  Write  the  title  of  the              scale and determine
                                                                                              the height of bar
                                                       pictograph
                                                                                     Step 4:  Mark these heights
                                                                                              parallel to y-axis

                                                                                     Step 5:  On  the  horizontal
                                                                                              line  draw  bars  of
           Step 1:  Decide the labels of the columns                                          equal  width  for
           Step 2:  Collect the numeric data                                                   the heights marked
                                                                                              in step 4
           Step 3:  Complete the table
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