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Chapter 1: Introduction and Graphical Displays
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CHAPTER 1
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Introduction and Graphical Displays
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You should study the topics in this chapter if you need to review
or want to learn about
The subject of statistics
Some common graphical displays used to represent data
Frequency distributions
Dot plots
Bar charts
Histograms
Frequency polygons
Stem-and-leaf plots
Time Series graphs
Pie charts
Pareto charts.
In later chapters, you will be introduced to several other graphical displays,
and you will understand that these graphical displays can be combined with
other measures to describe the distribution of the data set with which you are
analyzing. In addition, some graphical displays may later be used to help in
the understanding of the assumptions made in inferential statistics.
1-1 Introduction
In order for us to have an understanding of what is encountered in the
subject area of
statistics
, it is essential that one is introduced to some
terminologies within the subject area. Terminologies in any subject area are
the yarns which hold the language of the subject together. First we will
explain what is meant when we speak about the
subject of statistics
.