This book is a must-have for anyone needing to understand large or small amounts of data. It describes how to build and interpret graphs, showing how “understanding data” means that the graph must clearly and succinctly answer questions about the data. In most chapters, research questions are presented, and the reader builds the appropriate graph needed to answer the questions.

It's easy to read, and provides plenty of examples and practice so students can get the concepts. —David Nalbone, Purdue University

It presents a comprehensive list of graphs available in SPSS, with details about how to construct and interpret them. —Thomas Short, John Carroll University

The comprehensive treatment of an important topic, including “walk-throughs” of how to produce a graph of each type, is well done. The chapter on deception brings in coverage of a useful and important topic as well. —Christopher Lawrence, Virginia Tech University

### Simple Histogram

PURPOSE OF GRAPHS YOU ARE ABOUT TO BUILD

• To show a normally distributed continuous variable
• To show a non-normally distributed continuous variable
• To describe data by adding the number of observations in each successive interval

### 8.1 Introduction to the Simple Histogram

In the previous chapter on the multiple line graph, we covered various data questions dealing with both continuous and discrete data. We explored and ...