Final answer:
To find the probability that a randomly selected person does not have a below average income and is not very happy, we need to consider the probabilities of each event separately and then multiply them together.
Step-by-step explanation:
To find the probability that a randomly selected person does not have a below average income and is not very happy, we need to consider the probabilities of each event separately and then multiply them together.
Let's assume that the probability of a person having a below average income is p1, and the probability of a person not being very happy is p2.
Since the events are independent, the probability that a person does not have a below average income is 1 - p1, and the probability that a person is not very happy is 1 - p2.
To find the probability that a person does not have a below average income and is not very happy, we multiply these probabilities together: (1 - p1)(1 - p2).