CPT Section D Quantitative Aptitude Chapter 10 Dr. R. B. Tiwari In this topic we shall study about the types of data and its various ways of representation To have a broad overview of the subject and its application Learning Objectives To have an idea about the primary and secondary data Learning Objectives To have an idea about the textual, tabular format including the techniques of creating frequency distribution and determination of cumulative frequencies. Learning Objectives To have an idea about the diagrammatic representation of the data, which includes Histogram, Frequency Polygone and Pie-Chart etc. Statistics may be defined as a scientific method for collecting, analyzing and presenting data, leading finally to draw statistical inferences about some important characteristics. In the present scenario Statistics has a wide application in the fields of Economics, Business Management, Commerce etc. Statistical data can be defined as quantitative information about some particular characteristic under study. It can be classified as Primary Data Secondary Data The data which are collected for the first time by an investigator or agency, are known as primary data