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2.4 Statistical sampling

2.4 Statistical sampling

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Question 15

A school posts a questionnaire about homework on its social-media page. During the next 24 hours, 96 pupils choose to reply.

a.

Give two reasons why these replies may not represent all pupils at the school.

[2]
b.

Suggest a more suitable sampling method and explain one improvement it would provide.

[2]
Markscheme

2.4 Statistical sampling Questions

  1. A Level
  2. /Maths
  3. /2.4 Statistical sampling

36 exam-style questions on CCEA A Level Maths 2.4 Statistical sampling, covering 2.4.1 Statistical sampling, 2.4.2 Statistical sampling, 2.4.3 Statistical sampling, and 2.4.4 Statistical sampling. Each one has a worked solution and a mark scheme showing where the marks go.

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