Statistics and Probability Dictionary
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The ordinal scale is a type of measurement scale. Each value on
the ordinal scale has a unique meaning, and it has an ordered relationship to
every other value on the scale.
An example of an ordinal scale in action would be the results of a horse
race, reported as "win", "place", and "show". We know the rank order in which
horses finished the race. The horse that won finished ahead of the horse that
placed, and the horse that placed finished ahead of the horse that showed.
However, we cannot tell from this ordinal scale whether it was a close
race or whether the winning horse won by a mile.