document.write( "Question 252365: At Wired High School, 60% of the students own MP3 players, 50% own notebook computers, and 30% own both. Suppose that you pick a Wired student at random. What is the probability that the student owns at least one of these items?\r
\n" ); document.write( "\n" ); document.write( "(a) 0.65 (b) 0.70 (c) 0.80 (d) 0.90 (e) 0.95
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Algebra.Com's Answer #184234 by scott8148(6628)\"\" \"About 
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\"60% of the students own MP3 players\"
\n" ); document.write( "___ but 30% own BOTH, so 30% own ONLY MP3's\r
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\n" ); document.write( "\n" ); document.write( "\"50% own notebook computers\"
\n" ); document.write( "___ but 30% own BOTH, so 20% own ONLY notebook computers\r
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\n" ); document.write( "\n" ); document.write( "so 80% (30 + 20 + 30) own one or the other or both\r
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\n" ); document.write( "\n" ); document.write( "probability is 80% or .80
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