answered question 1(b),(c), and (d) based on the information given

Answers must be written within the answer boxes provided. Full marks are not necessarily awarded for a correct answer with no working. Answers must be supported by working andlor explanations. Solutions found from a graphic display calculator should be supported by suitable working. For example, if graphs are used to nd a solution, you should sketch these as part of your answer. Where an answer is incorrect, some marks may be given for a correct method, provided this is shown by written working. You are therefore advised to show all working. 1. [Maximum mark: 6] Eduardo believes that there is a linear relationship between the age of a male runner and the time it takes them to run 5000 metres. To test this, he recorded the age, x years, and the time, I minutes, for eight males in a single 5000m race. His results are presented in the following table and scatter diagram. x, years t, minutes (a) For this data, nd the value of the Pearson's product-moment correlation coefcient, r. [2] Eduardo looked in a sports science text book. He found that the following information about r was appropriate for athletic performance. Value of II'I Description of the correlation O S iri