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2 Statistics

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Question 140

Eighty households are numbered 01 to 80. A researcher reads the following two-digit random numbers from left to right.

04, 81, 17, 17, 60, 00, 72, 39, 95, 2804,\ 81,\ 17,\ 17,\ 60,\ 00,\ 72,\ 39,\ 95,\ 2804, 81, 17, 17, 60, 00, 72, 39, 95, 28

a.

Write down the labels of the six households selected for a simple random sample.

[3]
b.

Explain why 81 and the second occurrence of 17 are not used.

[2]
Markscheme

2 Statistics Questions

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

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