In an increasingly data-driven world, it is more important than ever for students as well as professionals to better understand basic statistical concepts. 100 Questions (and Answers) About Statistics addresses the essential questions that students ask about statistics in a concise and accessible way. It is perfect for instructors, students, and practitioners as a supplement to more comprehensive materials, or as a desk reference with quick answers to the most frequently asked questions.

Is a Picture Really Worth a Thousand Words? Why Illustrate Data?

Is a Picture Really Worth a Thousand Words? Why Illustrate Data?

Before this answer seeks to enlighten with words, take a look at a certain set of scores (number of boxes of cookies sold by week) and a graph of the same.

Here are the data organized as a table.


Boxes Sold

Week 1


Week 2


Week 3


Week 4


And Figure 26.1 shows a simple line chart created using Excel.

Figure 26.1 A simple line chart

Figure 4

We used a line chart because it is the best format for recording and visualizing change over time. You’ll learn how to create a simple line chart like this with just a few mouse clicks later on in this section of 100 Questions (see question #34).

The important question when comparing these two ways of representing ...

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