THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A recent survey showed that 15% of computer programmers have experienced some form of wrist pain from typing,and that 25% are taking aspirin daily.Six percent of all programmers have both experienced some form of wrist pain from typing and taken aspirin on a daily basis.
-What is the probability that a programmer has wrist pain or takes aspirin on a daily basis?
A)0.66
B)0.25
C)0.34
D)0.15

Question

Quizplus · Accepted Answer

To find the probability that a programmer has wrist pain or takes aspirin on a daily basis, we need to add the probabilities of each event and subtract the probability of both happening together. 
P(Wrist pain or Takes aspirin) = P(Wrist pain) + P(Takes aspirin) - P(Wrist pain and Takes aspirin) 
= 0.15 + 0.25 - 0.06 
= 0.34. 
Therefore, the correct answer is choice C (0.34).