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2 marksSources of Data

CAPE Applied Mathematics Unit 1 · 2011 · Paper 2 · Question 1(b)(iii)

A hardware store wishes to select a sample of 20 cans of paint out of 300 cans (consisting of white, red, green, and blue) using different sampling methods G, H, I, J, and K.

Given that 120 of the 300 cans of paint are blue, determine the number of blue cans of paint in the sample selected using method J.

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Other parts of this question

  1. 1(a)(i)Indicate, using the letters A, B, C, D and E, which variables are Quantitative.[3 marks]
  2. 1(a)(ii)Indicate, using the letters A, B, C, D and E, which variables are Qualitative.[2 marks]
  3. 1(a)(iii)Indicate, using the letters A, B, C, D and E, which variables are Discrete.[2 marks]
  4. 1(a)(iv)Indicate, using the letters A, B, C, D and E, which variables are Continuous.[1 mark]
  5. 1(a)(v)Indicate, using the letters A, B, C, D and E, which variables Cannot be represented by a histogram.[2 marks]
  6. 1(b)(i)Name EACH of the sampling methods G, H, I, J and K based on the given descriptions.[5 marks]
  7. 1(b)(ii)Calculate the value of n in sampling method H.[2 marks]
  8. 1(b)(iv)Give TWO differences between sampling methods G and J.[4 marks]
  9. 1(c)Distinguish between a 'parameter' and a 'statistic'.[2 marks]

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