Descriptive Statistics Solved Problems Quiz
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Questions and Answers

What is the main purpose of descriptive statistics?

  • To summarize and describe the main features of a dataset (correct)
  • To prove cause-and-effect relationships between variables
  • To determine the probability distribution of a population
  • To make predictions about future events based on historical data
  • Which measure of central tendency is most affected by outliers?

  • Range
  • Median
  • Mode
  • Mean (correct)
  • In a normal distribution, what percentage of data falls within one standard deviation from the mean?

  • 85%
  • 80%
  • 68% (correct)
  • 75%
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