Introduction to Statistics
Introduction to Statistics Statistics is the discipline (some consider branch of mathematics) that concerns the collection, organization, analysis, interpretation and presentation of data. Data: Set of information (any fact, figure, sign, symbol, number) describes a given entity Data Types: Qualitative data, Quantitative data Data Analysis Descriptive Statistics: Quantitatively describes or summarizes features of collected information using table, graphs and calculated using central tendency, dispersion, index number. Generalization of data is not possible, only provide worthy information regarding the nature of a specific group of individuals. Inferential Statistics: Learn about the population through appropriate sample of data using probability, estimation, different statistical test. It facilitates the generalization of data.