Question
Explain the 'exclusive' and 'inclusive' methods used in classification of data.
Solution
There are two methods of classifying the data according to class-intervals, namely Exclusive Method and Inclusive Method.
Exclusive Method : This method is useful whether the value is complete number or in decimals. In case of exclusive series, value of the upper limit of a class is included in the lower limit of the next class interval. Value of the upper limit of the class is included in that very class interval.
Inclusive Series : In inclusive series value of the upper limit of a class is included in that very class interval. Inclusive series is useful when value is incomplete number.
