Definition. A collection or an aggregate of well-defined objects is called a set. Those objects which belong to the set are called elements of the set. Sets are usually denoted by capital letters A, B, C, etc., and their elements by small letters a, b, c, etc. Set, aggregate, group, collection, etc., are synonyms in ordinary language but in mathematical language they do not have the same meaning. ‘ Well-defined ’ here means that any object may be classified as either belonging to a set A or not belonging to the set A.
KeywordsStatistical Population Class Limit Simple Random Sample Frequency Curve Frequency Table
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