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2.1 Statistical Sampling

2.1 Statistical Sampling

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Question 8

Two independent simple random samples are taken from the same population of students. In the first sample, 34 of 50 students prefer online homework. In the second sample, 75 of 120 students prefer online homework.

a.

Calculate the proportion in each sample who prefer online homework.

[2]
b.

Give one reason why the sample proportions are not equal.

[1]
c.

State which sample is likely to give the more reliable estimate of the population proportion, giving a reason.

[2]
Markscheme

2.1 Statistical Sampling Questions

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

36 exam-style questions on WJEC A Level Maths 2.1 Statistical Sampling, covering 2.1.1 Statistical Sampling, 2.1.2 Statistical Sampling, 2.1.3 Statistical Sampling, 2.1.4 Statistical Sampling, and 2.1 Statistical Sampling. Each one has a worked solution and a mark scheme showing where the marks go.

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