2. Answer the following questions using Figure 1 (2.5 points each; 15 points total) Figure 1 one individual O-disease dropout Jan 1 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 31 Assumptions: Each disease or dropout occurs on the first day of that month (Chapter 3's slides 11 and 12 are the most relevant to this problem). . The length of the line represents the time of the person in the study. a. What is cumulative incidence (CI) rate per 1,000 from Jan 1st to Dec 31"? 5/10.5 b. What is the incidence density (ID) per 1,000 person-months? c. What is the ID per 1,000 person-years d. What is the prevalence rate (PR) per 1,000 on December 1"? e. What is the period prevalence per 1,000 from September 1 to December 1"? f. What is the cumulative incidence per 1,000 from October 1" to December 1"? I