plumiChi-squared tests: WJEC A‑Level Further Maths questions
Every WJEC A-Level Further Maths exam question on 2.5 Chi-squared tests, 2018–2025, with its mark scheme and examiner’s report.
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All 10 questions on Chi-squared tests, as a list
- Summer 2025, AS Unit 2, Q5 (17 marks): 5. Mark is a fan of ‘Gaming Extreme’, which is a multidisciplinary sport in which there are four ways of winning. Athletes compete in different age categories.
- Summer 2024, AS Unit 2, Q3 (12 marks): 3. A company makes bags. The table below shows the number of bags sold on a random sample of 50 days. A manager believes that the number of bags sold per day ca
- Summer 2024, AS Unit 2, Q5 (12 marks): 5. Lily is interested in the relationship between the way in which students learned Welsh and their attitude towards the Welsh language. Students were categoris
- Summer 2023, AS Unit 2, Q6 (20 marks): 6. A company has 20 boats to hire out. Payment is always taken in advance and all 20 boats are hired out each day. A manager at the company notices that 10% of
- Summer 2022, AS Unit 2, Q5 (11 marks): 5. John has a game that involves throwing a set of three identical, cubical dice with faces numbered 1 to 6. He wishes to investigate whether these dice are fai
- Summer 2022, AS Unit 2, Q6 (11 marks): 6. An online survey on the use of social media asked the following question: “Do you use any form of social media?” The results for a total of 1953 respondents
- Summer 2019, AS Unit 2, Q5 (11 marks): 5. Chris is investigating the distribution of birth months for ice hockey players. He collects data for 869 randomly chosen National Hockey League (NHL) players
- Summer 2019, AS Unit 2, Q7 (13 marks): 7. An article published in a medical journal investigated sports injuries in adolescents’ ball games: football, handball and basketball. In a study of 906 rando
- Summer 2018, AS Unit 2, Q5 (12 marks): 5. A life insurance saleswoman investigates the number of policies she sells per day. The results for a random sample of 50 days are shown in the table below. N
- Summer 2018, AS Unit 2, Q6 (8 marks): 6. A student, considering options for the future, collects data on education and salary. The table below shows the highest level of education attained and the s
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