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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