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STATISTICS


                              (Measure of Central Tendency)








                                                         Median                         Mode
                    Mean





                                     Median of
                                    grouped Data                             Median of
                                                                           ungrouped Data



                                        Graphical Representation
                                       of Cummulative frequency
                                              distribution




                                  Less than         More than
                                   Ogive              ogive

























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