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2.2.2 Scatter diagrams and correlation

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Question 11

An oceanographer, Dr. Aris, is investigating the linear relationship between seawater salinity levels $S$ and dissolved oxygen concentration $D$ 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 $- 1.42$ ?

Definitely incorrect
Probably incorrect
Probably correct
Definitely correct

[2]

Markscheme

2.2.2 Scatter diagrams and correlation Questions

A Level
Maths
2.2.2 Scatter diagrams and correlation

157 exam-style questions on AQA A Level Maths 2.2.2 Scatter diagrams and correlation. Each one has a worked solution and a mark scheme showing where the marks go.

2.2.2 Scatter diagrams and correlation

Question bank

2.2.2 Scatter diagrams and correlation

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Question 11

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

Definitely incorrect
Probably incorrect
Probably correct
Definitely correct

[2]

Markscheme

2.2.2 Scatter diagrams and correlation Questions

A Level
Maths
2.2.2 Scatter diagrams and correlation

157 exam-style questions on AQA A Level Maths 2.2.2 Scatter diagrams and correlation. Each one has a worked solution and a mark scheme showing where the marks go.