AQA S1 2010 June — Question 1

Exam BoardAQA
ModuleS1 (Statistics 1)
Year2010
SessionJune
TopicBivariate data
TypeCalculate r from raw bivariate data

1 The weight, \(x \mathrm {~kg}\), and the engine power, \(y \mathrm { bhp }\), of each car in a random sample of 10 hatchback cars are shown in the table.
\(\boldsymbol { x }\)1196106213351429101213551145141712751284
\(\boldsymbol { y }\)123881501586912094143107128
  1. Calculate the value of the product moment correlation coefficient between \(x\) and \(y\).
  2. Interpret your value in the context of the question.
    \includegraphics[max width=\textwidth, alt={}]{c4844a30-6a86-49e3-b6aa-8e213dfc8ca1-03_2484_1709_223_153}