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2 Statistics

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Question 304

Two simple random samples of 80 voters from the same town give estimates 0.44 and 0.51 for the proportion supporting a proposal.

a.

Explain why the estimates differ.

[1]
b.

State how increasing the sample size would generally affect this variation.

[1]
c.

Explain why a census could still contain error.

[2]
Markscheme

2 Statistics Questions

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

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