ABSTRACT
Prior to reading this chapter you should have had some experience with the following:
Throughout your programme of study, you will probably have been asked either to find data from textbooks or to generate data in the laboratory. By ‘data’, we mean information that can be ascribed a value, whether that value is assessed as a nominal, ordinal, interval or ratio scale, and by which we begin to make inferences (see Chapters 4-6). In some instances you will have been asked to present these data in class and this might have resulted in your formulating some tables or graphs. Whilst the task of finding the data from other references or generating it in the laboratory may seem harder than formulating a table, poorly constructed tables or graphs can ruin much of the hard work performed by the student.
