Statistics Knowledge Quiz
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Questions and Answers

What is the primary focus of statistics?

  • Creating mathematical models for all phenomena
  • Describing and summarizing data (correct)
  • Proving cause-and-effect relationships
  • Predicting future events with certainty
  • Which measure of central tendency is most influenced by extreme values?

  • Mode
  • Median
  • Mean (correct)
  • Standard deviation
  • What is the purpose of a confidence interval in statistics?

  • To ensure that the sample is perfectly representative of the population
  • To provide an exact value for a population parameter
  • To eliminate the possibility of sampling error
  • To estimate the range within which a population parameter lies (correct)
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