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2.1 Sampling

2.1 Sampling

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Question 11

A list contains 840 customers. A systematic sample of 70 is required.

a.

Calculate the sampling interval.

[1]
b.

Describe how to complete the selection using a random start.

[2]
c.

Give one circumstance in which the ordering of the list could make the sample unrepresentative.

[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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