1. More than 10% of people carry the parasite Toxoplasma gondii. The following table gives data from Prague on 15- to 29-year-old drivers who had been involved in an accident. The table gives the number of drivers who were infected with Toxoplasma gondii and who were uninfected. These numbers are compared with a control sample of 249 drivers of the same age living the same in the same are who has not been in an accident.
2. (a) What are the two variables? (b) Are the variables categorical or numerical? (c) Identify which variable is the explanatory and which is the response. (d) What type of table is this? (e) What kind of graph(s) can we use to display the data? (f) Use Excel to graph this data and explain why you choose to use that graph. (g) Describe the associate between the two variables in words, as revealed by your graph.