plumiOutliers and cleaning data: AQA A‑Level Maths questions
AQA A-Level Maths past-paper questions on L.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 4 questions on Outliers and cleaning data, as a list
- June 2025, Paper 3, Q20 (9 marks): The oxides of nitrogen emissions, F g/km, of a car registered in 2000 can be modelled by a normal distribution with mean 0.41 and standard deviation 0.07 20 (a)
- June 2023, Paper 3, Q15 (11 marks): (a) A random sample of eight cars was selected from the Large Data Set. The masses of these cars, in kilograms, were as follows. 950 989 1247 1415 1506 1680 183
- November 2021, Paper 3, Q13 (6 marks): The table below is an extract from the Large Data Set. Propulsion Type Region Engine Size Mass CO2 Particulate Emissions 2 London 1896 1533 154 0.04 2 North Wes
- June 2019, Paper 3, Q12 (6 marks): Amelia decides to analyse the heights of members of her school rowing club. The heights of a random sample of 10 rowers are shown in the table below. Rower Jess
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