Ratio

Ratio

The result of dividing one quantity by another without regard for details such as a time dimension. Rates, proportions and percentages are all types of ratios. The distinction between a proportion and a ratio is that, whereas the numerator of a proportion is included in the population defined by the denominator, this is not necessarily so for a ratio, which expresses the relationship of two separate and distinct quantities, neither of which is included in the other (17).