According to a survey conducted in a certain year by the Federal Communications Commission (FCC) of 3005 adults who were home broadband users, 35.5% of those surveyed had switched their service over the past 3 years. Of those who had switched service in the past 3 years, 51% were very satisfied, 39% were somewhat satisfied, and 10% were not satisfied with their service. Of the 64.5% who had not switched service in the past 3 years, 46% were very satisfied, 43% were somewhat satisfied, and 11% were not satisfied with their service.
(a) What is the probability that a participant chosen at random
had not switched service in the past 3 years and was very satisfied
with their service?
(b) What is the probability that a participant chosen at random was
not satisfied with their service?
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