A survey asked people of different ages whether they get their news byreading the paper. What is the probability that a person surveyed is under 40and gets the news by reading the paper?

From the iformation provided we will determine the probabiliy that person is under 40 and gets the news by reading the paper:
[tex]p=\frac{4}{80}\Rightarrow p=\frac{1}{20}\Rightarrow p=0.05[/tex]So, the probability is 5%. [Option B]