1. A travel agency surveys WA clients the top three airlines they choose. 50% choose Delta, 30% choose Alaska, and 20% choose United. Clients do not take other airlines. Among clients choosing Delta, 60% travel within Pacific states, 20% travel to other countries (e.g., Canada). Among clients choosing Alaska, 80% travel within Pacific states, 10% travel to other countries. Among clients choosing United, 90% travel within Pacific states (United has no flight to other countries in WA). Clearly, there are some clients who travel to destinations, such as the East Coast and the Midwest, that are in neither Pacific states nor other countries.
2. Given that a randomly selected client travels within Pacific states, the conditional probability that this client travels with United Airlines.