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Introduction to Statistics PowerPoint Presentation


Statistics is the science of collecting , organizing, presenting, analyzing and interpreting numerical data for the purpose of assisting in making an effect decision.

Main Components involved in Statistics

  • Collecting Data
  • Organizing Data
  • Presenting
  • Analysis
  • Interpreting

Procedures for Data Collection

  • Experiments: a process that produces a single outcome whose result cannot be predicted with certainty.
  • Telephone Survey: this involve closed end questions and demographic questions.
  • Written Questionnaire: its like telephone survey but difference is that it includes open-ended questions.
  • Mail questionnaire: its similar to written questionnaire but the difference is that it is sent through emails.
  • Direct observation and personal interview:  data collected are physically observed and the data recorded based on what takes place in the process.

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