### Exercise 2: (Mis)representing scientific research in popular news coverage According to a study published in 1987, the annual air pollution level of Five Metropolitan Areas in the United States (measured as Metropolitan sulfate concentration) showed a positive association with the annual total mortality rate of these areas (number of deaths per year per 100,000 people) [https://doi.org/10.1111/j.1539-6924.1987.tb00482.x|. a. From this study, a journalist concluded that *for each unit increase in the sulfate air concentration of a metropolitan area (base unit: sulfate migrggrgms per meter cubed), an individual's odds of dying increased by a factor of approximately 1.02.* Using only the information provided in this italicized sentence, determine whether the *sulfate* variable is numerical or categorical, and justify your answer. Likewise, determine whether the *death* variable is categorical or numerical, and justify your answer. (Reminder: to decide whether a variable is categorical or numerical, think about the different kinds of outcomes each variable can take.) *Write your answer here after deleting this sentence*