Raising the bar

Chapter 2. Describing Data: Graphical

Unit 2.4. Questions for repetition

1. Describe verbally how you get Table 2.1 (see Frequencies and distributions). Why are relative frequencies better than absolute ones?
2. Give short definitions of a histogram, Pareto diagram, time series plot, stem-and-leaf display, and scatterplot. Indicate when their usage is appropriate.
3. Suppose you observe prices of Microsoft and Apple stocks. How would you visualize them? Suppose you own one share of each stock. How would you define and visualize the value of your portfolio?

Previous: Visualizing statistical data | Next: Three representations of data: raw, ordered and frequency

Want the whole book (all 14 chapters, exercises, and the index) as a single PDF? Available on Lulu for $1.99.