# Quantitative Data

We are aware that the data can be divided into primary and secondary data. Further data can be classified according to their properties. What is classification? Classification is the process of arranging data into sequences and groups according to their common characteristics or separating them into different related parts.

The functions of classification are condensation of data, comparison of data, relationship study and statistical treatment. If we consider the rules of classification, it should be unambiguous, it should be exhaustive and mutually exclusive, stability, suitability and flexibility. The criteria in which the data can be classified are, Geographical, Chronological, Qualitative and Quantitative. In this section let us study about quantitative study which is with respect to numerical values and magnitudes.