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SAI INTERNATIONAL SCHOOL


                                                   ECONOMICS



                                                       (Note-24)


                                                        Class-XI


                                   [ELEMENTARY     STATISTICS]


                                                   CHAPTER -4


                                       ORGANISATION OF DATA



               TOPIC

                     Frequency grouped series

                     Types of Continues series
                     Inclusive and exclusive series


               SHORT NOTES

                     When items are arranged in groups or class but they are not exactly

                       measurable, they form a continuous series.
                     Types of continuous frequency series:

                       Continuous frequency distribution

                       Exclusive    Inclusive     Mid Value frequency  Open end    Cumulative
                          Series          seriesseries                      series     frequency series

                   1.  Exclusive series: When the CI are so fixed that the upper limit of one class
                       interval is the lower limit(L.L) of the next CI


                    OR

                Exclusive series is that series in which every CI excludes item


               corresponding to its upper limit(U L).
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