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2.5.6 Pearson's product-moment correlation coefficient

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Question 3

An oceanographer, Dr. Aris, is investigating the linear relationship between seawater salinity levels SSS and dissolved oxygen concentration DDD across 18 hydrothermal vent samples. After performing her calculations, she determines the product moment correlation coefficient (PMCC) for the dataset.

Which of the following statements best describes her calculated result of −1.42-1.42−1.42?

  • Definitely incorrect
  • Probably incorrect
  • Probably correct
  • Definitely correct
[2]
Markscheme

2.5.6 Pearson's product-moment correlation coefficient Questions

  1. A Level
  2. /Maths
  3. /2.5.6 Pearson's product-moment correlation coefficient

107 exam-style questions on OCR A Level Maths 2.5.6 Pearson's product-moment correlation coefficient. Each one has a worked solution and a mark scheme showing where the marks go.

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