Question: The National Highway Traffic Safety Administration (NHTSA) conducted a survey to learn how drivers throughout the United States are using seat belts. Sample data consistent with the NHTSA survey are as follows ( total 1086 people)

Driver Using Seat Belt?

Northeast 148 52

Midwest 162 54

a) For the United States, what is the probability that a driver is using a seat belt?

b) What is the probability of seat belt usage by region of the country? What region has the highest seat belt usage?

c) What proportion of the drivers in the sample came from each region of the country? What region had the most drivers selected? What region had the second most drivers selected?