Question

Juan Morales is a restauranteur who owns three authentic Mexican restaurants in the towns of Riverside, Springfield, and Centerville. To receive customer feedback, Juan provides postage-paid survey cards at each establishment which can be completed by patrons and mailed directly to him. By keeping records on the returned surveys, Juan has learned that 42% are from patrons of the Riverside restaurant, 22% are from patrons of the Springfield restaurant, and 36% are from patrons of the Centerville restaurant. Juan has also learned that the percent of surveys returned with negative feedback are 7