8 Your maximum heart rate depends on your age These data were collected from a sports journal Age years x 20 25 30 Maximum heart rate beats min y 206 200 194 a Draw a scatter plot of the data Find the equation of the line of best fit 3 marks b Determine the correlation coefficient How well does the line fit the data 3 marks c Use the equation to give a prediction of the maximum heart rate for a person of 23 years 1 mark