Need some clarity on how to answer this question

In this chapter, we learned the important concept of "sample space" and "disjoint events (mutually exclusive events)". I want you to consider the two questions below and explain your answer. Discussion Question 1 According to a center for disease control, the probability that a randomly selected person has hearing problems is 0.153. The probability that a randorr selected person has vision problems is 0.092. Can we compute the probabilit of randomly selecting a person who has hearing problems or vision problems by adding these probabilities? Why or why not? Discussion Question 2 If events E and F are disjoint and the events F and G are disjoint, must the events E and G necessarily be disjoint? Give an example to illustrate your opinion