plumiOutliers and cleaning data: WJEC A‑Level Maths questions
WJEC A-Level Maths past-paper questions on 2.3 Outliers and cleaning data, 2018–2025, with mark schemes and examiner’s reports where available. Add MadAsMaths questions to your practice, or browse them separately by topic and difficulty.
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All 3 questions on Outliers and cleaning data, as a list
- Summer 2025, AS Unit 2, Q5 (11 marks): 5. The World Health Organisation (WHO) compiles data on life expectancy and other factors. A hobbyist statistician is exploring the data he collects from the WH
- Summer 2022, AS Unit 2, Q4 (7 marks): 4 Jessica is studying the relationship between hip girth, h cm, and thigh girth, t cm, for American adults who are physically active. She takes a random sample
- Summer 2018, AS Unit 2, Q6 (10 marks): Basel is a keen learner of languages. He finds a website on which a large number of 0 6 language tutors offer their services. Basel records the cost, in dollars
Questions, mark schemes and examiner’s reports are © WJEC CBAC Ltd, from their published past papers. Plumi isn’t affiliated with any exam board. Want whole papers? WJEC A-Level Maths past papers.
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