Ordinal Variable/Examples/Side Effects

Example of Ordinal Variable

Let $X$ be a random variable whose values take on the classification of side effects of a drug:

$\set {\text {none}, \text {slight}, \text {moderate}, \text {severe} }$

Then $X$ is classed as a ordinal variable.

Sources

• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): categorical variable