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.

What Is a Histogram, and How Can I Create One Manually?

What Is a Histogram, and How Can I Create One Manually?

Ahistogram is a visual representation of a frequency distribution. It is a simple way to effectively illustrate the number of values that fall into each class interval. While we will show you how to create a histogram using Excel (question #30), it is important to know how to create one manually.

To create a histogram like the one you see below (using the data from question #28) follow the steps on page 57.

Figure 29.1 A simple histogram

Figure 5
  • Using graph paper with ¼- to ½-inch boxes (you can create your own at, label the vertical or y-axis as “Frequency” and the x-axis as “Class Interval.” In this example (see the answer to question #28), the ...
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