ANSWER;
[tex]C;\text{ 14\%}[/tex]
EXPLANATIONS;
Here, we want to get the probability of A, given B; where A refers to the event that the person surveyed is under 40, and B is the event that he or she gets the news by reading news paper
According to Bayes' theorem, we have the formula to use as;
[tex]P(A|B)\text{ = }\frac{P(AnB)}{P(B)}[/tex]
Since the total is the same, we can work only with the numbers
So, firstly, we need the number of people that gets the news by reading news papers; we have this as 28
Now, we need the number of people who are under 40 and also gets their news by reading papers
We have this as 4
So, we have the probability as;
[tex]P(A|B)\text{ =}\frac{4}{28}\text{ = }\frac{1}{7}\text{ = 14.28 \%}[/tex]
We have this as approximately 14%