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?