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 does not have wrist pain and does not take aspirin on a daily basis?
A)0.75
B)0.66
C)0.85
D)0.25

Question

Quizplus · Accepted Answer

The probability of having wrist pain or taking aspirin is 0.15 + 0.25 - 0.06 = 0.34. Therefore, the probability of not having wrist pain and not taking aspirin is 1 - 0.34 = 0.66.