laurelferri laurelferri

29-08-2016
Mathematics

contestada

A survey 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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dominique1956 dominique1956

29-08-2016

1% entertained by books
9% entertained by TV

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