Mathematics, 23.08.2019 19:30, rebtav

Asurvey revealed that 31% of people are entertained by reading books, 39% are entertained by watching tv, and 30% are entertained by both books and tv. what is the probability that a person will be entertained by either books or tv

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Asurvey revealed that 31% of people are entertained by reading books, 39% are entertained by watchin...