BIJU P M PGT ECONOMICS KV 2 KOCHI
BIJU P M PGT ECONOMICS KV 2, KOCHI
Definition of Classification • Classification is grouping of data according to their identity , similarity, or resemblances. • 1. The facts are classified into homogeneous groups • 2. The basis of classification is unity in diversity • 3. The classification may be according to either attributes or characteristics or measurements
Objectives of Classification • To present the facts in a simple form. • To bring out clearly points of similarity and dissimilarity. • To facilitate comparison. • To bring out relationship. • To present a mental picture. • To prepare the basis for tabulation.
Characteristics of Classification • • • Classification should be unambiguous. The classes should not overlap Classification should be stable Classification should be flexible Classification should be suitable to the enquiry • Classification should have arithmetical accuracy
Methods of classification • Statistical data can be classified according to their characteristics. It can be grouped on the following bases: • 1. According to time, [Chronological • Classification] • 2. According to area, [Geographical Classification] • 3. According to attributes, [Qualitative • Classification] • 4. According to magnitudes or • variables, [Quantitative Classification]
BIJU P M PGT ECONOMICS KV 2 KOCHI
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