Terms from Statistics for HCI: Making Sense of Quantitative Data

Tail has two meanings in statistics. One is the long spread of low frequency values in a long-tail distribution, which includes very extreme values at the end(s) of the scale. The other is the use of the term to indicate in which directions the data is of interest – one, or both; see one-tailed test and two-tailed test.

Defined on page 47

Used on page 47