ABSTRACT
This chapter focuses on background information that is necessary for the reader to understand what follows. The topics discussed in this chapter are:
Summary of the history of correlation as a word, concept, and coefficient.
Overview of the science of linguistics.
History of the symbols used to represent correlation coefficient.
History of the nomenclature used for the linear correlation coefficient.
Tables, plots, and charts used for correlation analysis, such as “correlation graph”, “correlogram”, and “correlation table”.
Examples of formulas that have been used to calculate linear correlation (more detailed discussion can be found in later chapters).
Definitions of correlation “classes”, which are new terms introduced in this book; the new terms are Observational Correlation, Relational Correlation, and Co-relational Correlation.
Definitions of “relation”, “co-relation”, and “correlation” in the Oxford English Dictionary.
