Video: Introducing Time Series Data [4:38]
We learn to plot series of data against time and use techniques that ‘pull apart’ our plots to help identify patterns.
(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 time-series data?
- Why are people interested in time-series data?
- What is quarterly data?
- Why do people plot time-series data with points joined up by lines instead of using normal scatterplots?
- What, besides trends, is another form of pattern that is very common in time-series data?
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