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2.1 Sampling

2.1 Sampling

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Question 4

A college has 300 first-year, 240 second-year and 210 third-year students. A proportional stratified sample of 60 is taken.

a.

Calculate the number from each year.

[3]
b.

State how the students should be selected within each year.

[1]
Markscheme

2.1 Sampling Questions

  1. A Level
  2. /Maths
  3. /2.1 Sampling

36 exam-style questions on OCR (MEI) A Level Maths 2.1 Sampling, covering 2.1.1 Population and sample, 2.1.2 Samples to make informal inferences, 2.1.3 Random sampling, 2.1.4 Variety of sampling techniques, 2.1.5 Select or evaluate sampling techniques, and 2.1 Sampling. Each one has a worked solution and a mark scheme showing where the marks go.

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