Assuming that the sample table is for a cohort study from a fixed population. Use the information from this table to answer the related questions....

Total

A+C

B+D

A+B+C+D

X+Y

State what each of these answer choices mean (the first example is given to you): a. A/(A+B): Cumulative incidence of the disease in exposed

b. C/(C+D):

c. (A+B)/ (A+B+C+D):

d. [A/(A+B)]/[(C/C+D)]: e. [(A/X)/(B/Y)]: