plumiQuality assurance: Edexcel GCSE Statistics questions
Every Edexcel GCSE Statistics exam question on 2g Quality assurance, 2019–2025, with its mark scheme and examiner’s report.
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All 8 questions on Quality assurance, as a list
- June 2025, Paper 2 Higher, Q9 (7 marks): A group of homeowners are investigating the level of lead in their tap water. Five homeowners each collected a 100 ml sample of their water at the same time eac
- June 2024, Paper 1 Higher, Q8 (10 marks): Faiza owns a factory that makes footballs. The production line is set up to make footballs with a diameter of 219 mm. As a quality control check, random samples
- June 2023, Paper 2 Higher, Q10 (5 marks): A company produces bolts with a diameter 16.4 mm. Tamika takes random samples of 4 bolts at regular intervals from the production line and the mean diameter of
- June 2023, Paper 2 Higher, Q11 (8 marks): The heights of a group of seven-year-old boys have a mean of 121.7 cm and a standard deviation of 5.3 cm. (Source: www.who.int/growthref/who2007_height_for_age/
- June 2022, Paper 2 Higher, Q8 (10 marks): An engineering production line is set up to produce machine parts with a diameter of 24.50 mm. For quality control, random samples of size 4 are taken and the m
- June 2022, Paper 2 Higher, Q11 (13 marks): The mean of the daily winter temperatures and the mean of the daily summer temperatures in the UK have been recorded for each year from 1910 to 2018 This inform
- November 2021, Paper 1 Higher, Q11 (9 marks): A company uses a machine to fill cans with orange juice. For quality assurance, the company takes samples of 4 cans of orange juice at regular intervals in orde
- November 2020, Paper 2 Higher, Q9 (5 marks): A company manufactures tablets of medication X. The tablets have a target mass of medication X of 200 mg. The company uses quality assurance to monitor the mass
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