Chapter   3

The Analysis of Data—Univariate

Introduction

Espionage in the American Civil War

Data One Would Give an Arm For: Blood Pressure

What Have We Learned?

References

Introduction

When we teach elementary statistical techniques we frequently use small data sets—for very good reasons. With small data sets, statistics such as the mean, interquartile range, and so on are quickly and easily calculated by hand, allowing students to gain an understanding of the processes behind the statistics, as encapsulated by the formulas. Unfortunately, small data sets are frequently dangerous data sets; not much insight can be gained by studying the distributions. For example, changing the bin size of a histogram of a small data set is often invites student ...

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