Statistics and Probability Dictionary

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Statistics is a discipline that allows researchers to evaluate conclusions derived from sample data. In practice, statistics refers to a scientific approach used to:

  • Collect data.
  • Interpret and analyze data.
  • Assess the reliability of conclusions based on sample data.

For example, a researcher may ask which medicine is more effective - Drug A or Drug B. The researcher could use the tools of statistics to design a study to compare the two drugs. Using statistical methods, the researcher might conclude with 95% confidence that one medicine was superior to the other.

See also:   Statistic