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SAI International School
                                                       CLASS - X

               Mathematics
               CHAPTER-14: Statistics

               Lesson Notes-2



               SUBTOPIC :Mode of Grouped Data


                               nd
               *Mode is the 2  measure of central tendency in statistics.
               Mode-The observation, which occurs most frequently among the given observations
               ,i.e. the value of the observation having maximum frequency is called mode.


               Example: Mode of the numbers 2,  3,  4,  4,  6,  6,  6,  6,  7 and 9 is 6 because it is the
               repeated maximum number of time i.e.4times


               Sometimes, it is possible that more than one value may have the same maximum
               frequency.


               In this case the data said to be multimodal.

               Mode of Ungrouped Data


               Example-1:Find the mode of the following data:
               14, 25, 14, 28, 18, 17, 18, 14, 23, 22, 14, 18 by writing the data in the form of
               frequency.

               Solution:Writing the data in the form of frequency table
                        x i            f i
                        14             4
                        25             1

                        28             1
                        18             3
                        17             1

                        23             1
                        22             1


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