The following table shows the engine size (c), in cubic centimetres, and the fuel consumption (f), in miles per gallon to the nearest mile, for 10 car models. c (cm) 1000 1200 1400 1500 1600 1800 2000 2200 2500 3000 f(mpg) 46 42 43 39 41 37 35 29 28 25 a On graph paper draw a scatter diagram to represent these data. b Write down whether the correlation coefficient between cand fis positive or negative. Give a reason for your answer. The data can be summarised as follows: Ecf=626 100, c-18 200, f = 365 e Calculate S d The product moment correlation coefficient could be found by using coding. Suggest suitable coding.

AppendixLO1