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2 Unit 2: Applied Mathematics A

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Question 121

A researcher asks people leaving a swimming pool at 7 a.m. whether they support a later closing time. In a sample of 40 people, 34 support the change.

a.

Use the sample to estimate the percentage of all pool users who support a later closing time.

[1]
b.

Explain why this estimate may be misleading.

[2]
c.

Suggest one improvement to the sampling process.

[1]
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2 Unit 2: Applied Mathematics A Questions

  1. A Level
  2. /Maths
  3. /2 Unit 2: Applied Mathematics A

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