Значения термина non-representative sample на английском

Analysts say the government is not fabricating the housing numbers, but rather taking a non-representative sample of prices.

Objectives: Low response rates in epidemiologic research potentially lead to the recruitment of a non-representative sample of controls in case-control studies.

Data collected from a non-representative sample of 7,448 respondents includes socio-demographic characteristics and self-reported measures on levels of concern and behaviours related to COVID-19.