Exam-Style Question on Statistics
A mathematics exam-style question with a worked solution that can be revealed gradually
Question id: 564. This question is similar to one that appeared on an IB AA Standard paper in 2021. The use of a calculator is not allowed.
The following table contains data collected from an experiment.
(a) Plot points representing this data on the coordinate grid below.
(b) Find the equation of the regression line of \(y\) on \(x\) and draw the graph of that line on the scatter graph you have created.
(c) Use your equation to predict the value of \(y\) when \(x=5\).
(d) Write down the value of the Pearson’s product-moment correlation coefficient, \(r\).
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