(@) Make a scatterplot of the data for the female subjects. Which is the explanatory variable? (b) Is the association between these variables positive or negative? What is the form of the relationship? How strong is the relationship? (c) Now add the data for the male subjects to your graph, using a different color or a different plotting symbol. Does the pattern of the relationship that you observed in (b) hold for men also? How do the male subjects as a group differ from the female subjects as a group