A glaciologist is investigating the linear relationship between the annual rate of ice melt, MMM mm, and the mean surface temperature, TTT degrees Celsius. Which of the following is not a possible value for the calculated product moment correlation coefficient, rrr?
Practise Edexcel A Level Maths Regression, Correlation and Hypothesis Testing with exam-style questions for A Level Maths. 100 questions covering Exponential Models, Measuring Correlation, and Hypothesis Testing for Zero Correlation, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.