Population Proportion

• Population

  • entire group of people which all have at least one characteristic in common and must be defined specifically and unambiguously.
• Population Proportion

  • refers to a part of a population with a particular attribute expressed as a fraction or percentage of the whole population.
• Sample

  • refers to any part of a population regardless if it is a representative or not.
• Sample Proportion

  • the proportion of individuals in a sample sharing a certain trait
  • the ratio of the number of elements in the sample processing the characteristics of interest over the number of elements in the sample or "n."
• Formulas

  A) x/n

  B) n/p