1. You conduct a study exploring the impact of exposure on outcome, but based on the literature, you believe that factor may either modify or confound that relationship. Below is a data table tabulating the number of participants (n=810) by the presence of factor (+ = present; - = absent), exposure (+ = present; - = absent), and outcome (+ = present; - = absent). Factor Exposure Outcome n F+ E+ 0+ 82 F+ E+ O- 84 F+ E- 0+ 45 F+ E- 105 F- E+ O+ 3 F- E+ O- 9 F- E- O+ 60 F- E- O- 422