A study by Peter D. Hart Research Assoc. for the Nasdaq Stock Market revealed that 43% of all U.S. adults are stockholders. In addition, the study determined that 75% of all U.S. adult stockholders have some college education. Suppose 37% of all U.S. adults have some college education. A U.S. adult is randomly selected; What is the probability that the adult does not own stock? What is the probability that the adult owns stock and has some college education? What is the probability that the adult owns stock or has some college education?