13. Classification of Data Unit.no.1

13. Classification of Data:
The process of arranging data into classes or categories according to some common characteristics present in the data is called‘classification’.
Data can be classified by many characteristics, but there are four main bases of data classifications, there are:
(a)   Qualitative, i.e., sex, religion, marital status, race, etc.
(b)   Quantitative, i.e., height, weight, income, etc.
(c)    Geographical, i.e., continents, states, cities, etc.
(d)   Chronological, i.e., arrangement of data by their time occurrence, e.g., date of birth, date of joining, etc


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