1. Investigators enrolled 1,450 women in a study and followed them annually for four years to determine the incidence of heart disease. 500 already had heart disease when enrolled in the study. After four years 37 had new diagnoses of heart disease. a. Based on this data, you can calculate incidence. Can you also calculate prevalence? Explain your answer (1 point) b. Calculate the incidence of heart disease. Round your answer to two decimal places (2 points)