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Video: Relationships Between Numeric Variables [5 min]

In this video, we begin looking at scatterplots and ways of viewing and interpreting them.

(See also the Review Questions following the movie)

[Illustrated transcript (pdf)]

After you’ve watched this video, you should be able to answer these questions:

  • What is the standard way of displaying the relationship between 2 numeric variables?
  • What sort of variable is plotted against the vertical scale and what against the horizontal scale?
  • It is often useful to think of patterns in such plots in terms of 3 components. What are they?
  • What type of question should separate clusters of dots suggest to us?

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