A young family were looking for a new 3 bedroom semi-detached house. A local survey recorded the price xxx, in £1000, and the distance yyy, in miles, from the station of such houses. The following summary statistics were provided
Sxx=113 573,Syy=8.657,Sxy=−808.917 S_{xx} = 113\,573, S_{yy} = 8.657, S_{xy} = -808.917 Sxx=113573,Syy=8.657,Sxy=−808.917Use these values to calculate the product moment correlation coefficient.
Give an interpretation of your answer to part (a).
State the value of the product moment correlation coefficient if distances were measured in km rather than miles.
Practise Edexcel A Level Old Maths Correlation and Regression with exam-style questions for A Level Old Maths. 3 questions, matched to the Edexcel A Level Old Maths (9371) specification and written in Unit exams C1, C2, C3 and C4 plus two applied units (e.g. S1 and M1) 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.