Introduction to Data Analysis
1.1. Data and Statistics Data are information collected in various form. Singular form of data is called datum. It is like natural raw resources but unlike many natural resources, data shouldn’t be preserved only but also utilized at the same time. If they are not analyzed within a stipulated time than their validity may expire and they might not be as useful. This analysis is done with proper usage of various statistical tools. Without statistics, data are just information lying around and without data, statistical tools are of no use. In other words, it can be stated that both data and statistics are interdependent, together they can be used to see future like a fortune teller and throw lights on the missing past. It helps us to detect problems and find their solution like a doctor. If statistics is the fortune teller than data is the magical spell. If data is the fuel, then statistics is the engine. ‘Data are basically information in form of text, numbers, audio, video, p...