A survey of executives revealed that 35% of them regularly read The Wall Street Journal,20% read Forbes,and 10% read both The Wall Street Journal and Forbes.What is the probability that a particular executive reads either The Wall Street Journal or Forbes?
A)0.45
B)0.35
C)0.55
D)0.65

Question

Quizplus · Accepted Answer

To find the probability that an executive reads either The Wall Street Journal or Forbes, we use the formula for the union of two sets: P(A ∪ B) = P(A) + P(B) - P(A ∩ B). Substituting the given values, we get 0.35 + 0.20 - 0.10 = 0.45.

A Survey of Executives Revealed That 35% of Them Regularly