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2.4 Statistical sampling

2.4 Statistical sampling

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Question 11

Two different simple random samples of customers are asked whether they would recommend a shop. In the first sample, 62% say yes. In the second sample, 68% say yes.

Explain why the two percentages need not be the same.

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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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