The U.S. Energy Department states that 60% of all U.S. households have ceiling fans. In addition, 29% of all U.S. households have an outdoor grill. Suppose 13% of all U.S. households have both a ceiling fan and an outdoor grill. A U.S. household is randomly selected.
a. What is the probability that the household has a ceiling fan or an outdoor grill?
b. What is the probability that the household has neither a ceiling fan nor an outdoor grill?
c. What is the probability that the household does not have a ceiling fan and does have an outdoor grill?
d. What is the probability that the household does have a ceiling fan and does not have an outdoor grill?