Statistics (Definition), Descriptive & Inferential, Population, Census, Sample

• Statistics


  A branch of mathematics that deals with the collection, organization, presentation, analysis, and interpretation of data
• The Field of Statistics

  • Descriptive
  • Inferential
• Descriptive statistics


  Includes the collection, presentation, and description of data
• Inferential statistics


  Involves techniques interpreting the values resulting from the descriptive techniques and using them to make decisions and draw conclusions about the properties
• Population


  A complete collection of all elements (e.g., scores, people, …) to be studied
• Census


  A collection of data from every element in a population
• Sample


  A subcollection of elements drawn from a population