Abel alonzo, director of human resources, is exploring employee absenteeism at the plano power plant. ten percent of all plant employees work in the finishing department; 20% of all plant employees are absent excessively; and 7% of all plant employees work in the finishing department and are absent excessively. a plant employee is selected randomly; f is the event "works in the finishing department; " and a is the event "is absent excessively." p(a ∪ f) =
(a) 0.07
(b) 0.10
(c) 0.20
(d) 0.13 (e) 0.17