For each of the following scenarios, calculate a measure of the incidence of disease and identify what type of measure it is: (a) One thousand healthy women were followed for 8 years and 15 developed...

For each of the following scenarios, calculate a measure of the incidence of disease and identify what type of measure it is:

(a) One thousand healthy women were followed for 8 years and 15 developed high blood pressure. (b) A large group of elderly men was followed for a total of 5000 personyears and 75 of the men had a stroke during the duration of the study. (c) In a community with a population of 50,000 people, 27 developed diabetes during a 1-year period.