A student calculates the product moment correlation coefficient, rrr, for each of four different sets of bivariate data.
Identify the value of r r\,r that indicates the strongest linear correlation.
Circle your answer.
r=0.62r = 0.62r=0.62
r=−0.85r = -0.85r=−0.85
r=0.08r = 0.08r=0.08
r=−0.31r = -0.31r=−0.31
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.