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2 Statistics

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Question 110

A council invites residents to complete an online survey about a proposed cycle lane. Of 1250 responses, 78% support the proposal. There are 96,000 adult residents in the council area.

a.

Identify the sampling technique.

[1]
b.

Estimate the number of adult residents who support the proposal if the sample proportion is used.

[2]
c.

Give three reasons why this estimate may be unreliable.

[3]
Markscheme

2 Statistics Questions

  1. A Level
  2. /Maths
  3. /2 Statistics

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