document.write( "Question 627966: a survey revealed that 42% of people are entertained by reading.books, 33% are entertained by watching TV, and 25% are entertained by books and TV. What is the probably that a person will be entertained by either books or tv? \n" ); document.write( "
Algebra.Com's Answer #395263 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi,
\n" ); document.write( "42% of people are entertained by reading.books, 33% are entertained by watching TV,
\n" ); document.write( "and 25% are entertained by books and TV
\n" ); document.write( "P(either books 'or' tv) = .42 + .33 - .25 = .50 \n" ); document.write( "
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