Find an example of a spaghetti plot and click on the image. You can answer the following questions using either the default variables and cases, or else use the menu on the left to select variables and cases you are more interested in.

(a) Take a screenshot of the visualization and include it.

(b) What is this plot displaying?

(c) Describe the overall trend in this visualization.

(d) Choose one case, identify it, and describe the trend for this particular case.

The link http://www.google.com/publicdata/directory brings up some data visualizations created from public online data. Hovering your mouse over the little circles below the visualization brings you to a different data visualization (or you can just wait for the image to change). Many of the visualizations are dynamic, and by clicking them and then pressing the play button, you can watch them change over time. Also, when you click on the image, you can then edit it, including changing the variables and cases (often countries) displayed, or even the way the data are visualized. You can also hover over the points to see case labels and get more accurate information.