Instructions: Review the learning materials and provide a response for each item. In a population-based cohort study, an entire community was interviewed regarding smoking habits and then followed for one year. Upon ascertainment of all lung cancer deaths, the investigator obtained the following data: Smokers Nonsmokers Number of Lung Cancer Individuals Deaths 24,500 15 10,500 2 1. What is the exposure? 2. What is the outcome? 3. Calculate the incidence of lung cancer deaths among smokers (IR). 4. Calculate the incidence of lung cancer deaths among nonsmokers (!). 5. Calculate the incidence of lung cancer deaths in the total population (Ip). 6. Calculate the proper measure of association of smoking and lung cancer death. Interpret your results. 7. Calculate the risk difference. Interpret your results. 8. Calculate the population risk difference. Express your final answer per 100,000 population. 9. Calculate the etiologic fraction. Interpret your results. 10. Calculate the population etiologic fraction for smoking and lung cancer based on these data. Interpret your results. Express your final answer per 100,000 population. Bonus (+ 5 points): The table above is not a 2 x 2 table. It's merely a table displaying data for the cohort study. Produce a correctly and fully labeled 2 x 2 table for this problem set.