Answer: The probability that a particular top executive reads either time or US news and world report regularly is 0.65
Explanation: Let's say TM represents Time Magazine, NS represents Newsweek, and UW represents U.S news & World report.
Probability of TM readers (P.TM) = 0.35
Probability of UW readers (P.UW) = 0.40
Probability of both TM and UW readers (P.TM ∩ P.UW) = 0.10
Probability of both TM or UW readers (P.TM ∪ P.UW) = ?
Given the probability equation of:
(P.TM ∪ P.UW) = (P.TM) + (P.UW) - (P.TM ∩ P.UW)
= 0.35 + 0.40 - 0.10
= 0.65
Therefore the probability that a particular top executive reads either time or US news and world report regularly is 0.65
