ABSTRACT

Before the statistical horizon expands from one group to two, the last topic to be discussed is the different ways in which a group’s data can be communicated. A good picture is said to be worth a thousand words, but a good statistical portrait may sometimes be even more valuable, because the summary for a large group may reflect more than a thousand items of data. On the other hand, a few well chosen words (or numbers) of description can often be better than an unsatisfactory portrait.