Applied Mathematics · Ch 10 — Descriptive Statistics
Ratio Scale Measurement
10.3.4
Ratio Scale Measurement
A ratio scale is the most informative level of measurement. It has all the properties of an interval scale — equal intervals between values — but crucially, it also has a true, meaningful zero point. This means zero indicates the complete absence of the quantity being measured, so you can not only say that one value is larger than another, but also make meaningful statements like "A is twice as large as B." For example, height in centimetres or income in …