9 Consider the following hypothetical data on the occurrence of hepatitis in two cities a Calculate the cumulative incidence of hepatitis in each city b Which city has the higher cumulative incidence City City A City B New cases Observation period 85 90 Total January December 2017 January December 2017 10 The table below displays hypothetical data of 1 year diarrheal disease risks for 1 900 adults working in daycare centers in Georgia Treat their job duties as a way of understanding their exposure Remember risk is another way of saying cumulative incidence Certified childcare providers for children ages 0 3 years exposed Office staff not exposed Disease 50 9 59 No Disease 950 891 Starting population at risk 85 000 150 000 1 841 Total 1000 900 1 900 Risk Re Risk among the exposed Ru Risk among the unexposed a What is the 1 year risk cumulative incidence of disease for the exposed per 1 000 population Hint you will not need a calculator to got