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Dewis pwnc arall neu clirio pob hidlydd.
Nid yw holl gynnwys y cyfrifia wedi'i ryddhau. Edrychwch am ddatganiadau sydd i ddod ar y calendr datganiadau. Fel arall, gallwch greu set ddata eich fun.
Rhyddhawyd ar: 27 June 2023 | Gwybodaeth gorfforaethol
Reports explaining the methods and quality strategy used to produce our research outputs on the use of administrative and other data sources.
Rhyddhawyd ar: 08 January 2020 | Gwybodaeth gorfforaethol
This survey helps us to understand the quality of Census 2021.
Rhyddhawyd ar: 28 January 2016 | Gwybodaeth gorfforaethol
How we strive to maintain quality standards in our statistics.
Rhyddhawyd ar: 03 February 2025 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 14 December 2023 | Gwybodaeth gorfforaethol
Rhyddhawyd ar: 22 June 2022 | Gwybodaeth gorfforaethol
How we check the quality of the data
Rhyddhawyd ar: 13 January 2016 | Gwybodaeth gorfforaethol
Details of other issues that affected the quality of the 2001 Census data.
Information about the strategy and processes to quality assure the One Number Census.
Rhyddhawyd ar: 10 January 2023 | Methodoleg
Known quality information affecting education data from Census 2021 in England and Wales to help users correctly interpret the statistics.
Rhyddhawyd ar: 09 January 2023 | Methodoleg
Summary of the work conducted to build the Census 2021 address frame and an evaluation of the frame's quality.
