Continue your work from exercises 1.45 and 2.46 (pages 37 and 64) with the data file Large. bodyfat

(a) A man's weight depends on a number of factors, including his height. Plot and describe the relationship between height (explanatory) and weight (response). In exercise 2.47 you identified two extreme outliers. Point them out on your scatterplot.

(b) The study made two accurate measurements of the percent body fat (percent fat 1 and percent fat 2) based on two computation methods using underwater weighing. Make a scatterplot of the two variables (neither is explanatory here) and describe the relationship. Find the correlation coefficient r. Do the two methods give similar results?