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As of 2012, about 37% of households in the U.S. own dogs, about 30% own cats,...

As of 2012, about 37% of households in the U.S. own dogs, about 30% own cats, and about 13% own both. 46% have neither.

a. What percentage of households own at least one of these pets?

b. What percentage of households own only one of these pets?

c. Are owning a dog and owning a cat disjoint events? Why or why not?

math   Statistics-And-Probability   
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