To calculate the probability that all five people own a dog, you would need to multiply the probability of one person owning a dog by itself five times, since the events are independent. So, the probability that all five people own a dog would be:
P(all 5 people own a dog) = 0.69^5
=~ 0.157
Therefore, the probability that all five people picked at random in the USA own a dog is approximately 0.157, or 15.7%.