Psychology and Human Behavior According to the 2011-2012 APPA National Pet Owners Survey, approximately 33% of all U.S. households own a cat and 39% of all U.S. households own a dog.9 Suppose 10% of all U.S. households own both a cat and a dog.
a. Carefully sketch a Venn diagram with probabilities to illustrate the relationship between the two events C = household owns a cat, and D = household owns a dog.
b. What is the probability that a randomly selected U.S. household owns a cat or a dog?
c. What is the probability that a randomly selected household owns neither a cat nor a dog?
d. What is the probability that the U.S. household owns only a cat?