Final answer:
Approximately 5.3 percent of US workers use mass transportation for their commute, according to the given information.
Step-by-step explanation:
The majority of workers in the United States commute to work by car, truck, or van. According to the given information, approximately 86.5 percent of Americans use personal vehicles for commuting. Out of this group, 84.6 percent drive alone, while 15.4 percent carpool. Additionally, around 3.9 percent of workers walk to work, and approximately 5.3 percent use public transportation.