Title: Proportions, percentages and probabilities
Course: UGQuants (SSPS) > Section: Maths Self Test

Proportions, percentages and probabilities

We have seen how a fraction can be used to express a number less than one but an understanding of fractions is also central to quantitative analysis because of their capacity to express proportions, percentages and probabilities.

Proportions | Part of a whole number but also used to indicate how much of a sample or population of cases is made up of a smaller group in that sample or population
Percentages | Way of standardising proportions to express them as units per 100
Probabilities | Expressed in same way as proportions but understood differently e.g 6/10 is changed to 6 out of 10