3. Variability: How Values Disperse

Chapter 2, “How Values Cluster Together,” went into some detail about measures of central tendency: the methods you can use to determine where on a scale of values you can find the value that’s the most typical and representative of a group. Intuitively, an average value is often the most interesting statistic, certainly more interesting than a number that tells you how values fail to come together. But understanding their variation gives context to the central tendency of the values.

For example, people ...

Get Statistical Analysis: Microsoft now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.