Lesson 4: Getting the Big Picture and Summaries

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  • Read Section 2.3 in Chapter 2 and Chapters 6 and 7 in the text.
  • Work through the Lesson 4 online notes that follow.
  • Complete all lesson assignments as listed in the Canvas Module'

Learning Objectives

Chapters 6 and 7

After successfully completing this lesson, you should be able to:

  • Effectively critique reports about scientific studies and recognize the statistical issues involved.
  • Interpret any of the four graphs used with measurement data.
  • Interpret measures of center and measures of spread.
  • Determine when sensitive statistics or resistant statistics should be used to describe a data set.
  • Interpret a five-number summary.

Terms to Know

click on the terms to learn more

From Chapter 7

  • dotplot
  • stemplot
  • histogram
  • symmetric
  • skewed
  • boxplot
  • mean
  • median
  • percentiles
  • five-number summary
  • lower (first) quartile
  • upper (third) quartile
  • interquartile range (IQR)
  • outlier
  • standard deviation (SD)
  • sensitive measure
  • resistant measure