document.write( "Question 867192: Suppose a coin is tossed three times:\r
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Algebra.Com's Answer #522819 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "p and q = .5,  n = 3
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document.write( "P( at least one tail) = 1 - P(none) = 1- (.5)^3 = .875 \n" );
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