What is Statistics?
Statistics is a science that studies statistical methods. Statistical methods are scientific techniques that are used to plan and execute data collection, analysis, presentation and interpretation. Croxton and Cowden in their view, Statistics is a science of collection, presentation, analysis and interpretation of numerical data. Statistics should not be confused with a statistic. A statistic is a characteristic of a sample. It is used to estimate a value of population parameter. Statistics as a subject is divided into: 1. Statistical methods 2. Applied statistics Statistical methods are techniques and procedures by which numerical data are treated in order to gain insight from them. These methods as suggested by the definition of statistics are: 1. Data collection 2. Data organization 3. Data presentation 4. Data analysis 5. Data interpretation Data Collection Data collection is the process of obtaining data for the purposes of statistical...