According to the American Pet Products Manufacturers Association (APPMA) 2003- 2004
National Pet Owners Survey, 39% of U.S. households own at least one dog and 34% of U.S. households own at least one cat. Assume that 60% of U.S. households own a cat or a dog.
a. What is the probability that a randomly selected U.S. household owns neither a cat nor a
dog?
b. What is the probability that a randomly selected U.S. household owns both a cat and a
dog?
c. What is the probability that a randomly selected U.S. household owns a cat if the
household has a dog?

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The Answer of According to the American Pet Products Manufacturers Association (APPMA) 2003- 2004
National Pet Owners Survey, 39% of U.S. households own at least one dog and 34% of U.S. households own at least one cat. Assume that 60% of U.S. households own a cat or a dog.
a. What is the probability that a randomly selected U.S. household owns neither a cat nor a
dog?
b. What is the probability that a randomly selected U.S. household owns both a cat and a
dog?
c. What is the probability that a randomly selected U.S. household owns a cat if the
household has a dog?