Market research in a particular city indicated that during a week, 18% of all adults watch a television program oriented to business and financial issues, 12% read a publication oriented to these issues, and 10% do both.
a. What is the probability that an adult in this city who watches a television program oriented to business and financial issues reads a publication oriented to these issues?
b. What is the probability that an adult in this city who reads a publication oriented to business and financial issues watches a television program oriented to these issues?