The Family Resources Survey (FRS) is an annual survey of around 20,000 households across the UK. There is some uncertainty around estimates derived from it because:
- not every household in the country is interviewed as part of the survey
- there is a possibility that households that are interviewed contain a greater fraction of households below the poverty line than the general population
This guidance outlines a number of methods which can be applied to estimate uncertainty. It is intended for people who use the FRS and related datasets to conduct analysis.