plumiStatistical sampling: WJEC A‑Level Maths questions
Every WJEC A-Level Maths exam question on S.1 Statistical sampling, 2018–2025, with its mark scheme and examiner’s report.
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All 5 questions on Statistical sampling, 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 2024, AS Unit 2, Q1 (3 marks): 1. An exercise gym opens at 6:00 a.m. every day. The manager decides to use a questionnaire to gather the opinions of the gym members. The first 30 members arri
- Summer 2023, AS Unit 2, Q6 (10 marks): 6 Poppi and Clare are investigating Welsh language skills in Wales. Poppi randomly selects a sample of 20 different students from her school and asks them to st
- Summer 2019, AS Unit 2, Q4 (10 marks): Angharad collects the following data from the statswales.gov.wales website which shows 0 4 the number of road accidents in different regions of Wales. Year 2008
- Summer 2019, AS Unit 2, Q5 (6 marks): 5 Huw investigates the opinion of the public about their local primary schools. He visits his town centre and administers a questionnaire to 120 people over the
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