Statistics for Business: Decision Making and Analysis, 3rd Edition

Chapter 3 Describing Categorical Data

1. 3.1 Looking at Data

2. 3.2 Charts of Categorical Data

3. 3.3 The Area Principle

4. 3.4 Mode and Median

1. Chapter Summary

Consumers Spend Billions of Dollars Online.

Amazon, one of the first e-tailers, remains a leading shopping destination on the Web. Every day, millions of shoppers visit its Web site, often by clicking through from ads hosted by another Web site.

Table 3.1 describes six visits to Amazon. Each row in the table lists five attributes of one of these sessions. These attributes appear in columns that define variables that indicate whether the customer made a purchase, the host, and demographics ...