document.write( "Question 878949: Two fair coins are tossed. What is the probability that at least one is a tail? (Enter the probability as a fraction.)
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Algebra.Com's Answer #530393 by jim_thompson5910(35256)\"\" \"About 
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H = Head
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\n" ); document.write( "\n" ); document.write( "HH
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\n" ); document.write( "\n" ); document.write( "There are 4 possible outcomes. There are 3 outcomes where at least one coin is a tail (HT,TH,TT). \r
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\n" ); document.write( "\n" ); document.write( "So the answer is 3/4
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