document.write( "Question 764498: If a coin is flipped two times, what is the probability of the coin landing on HEADS at least 1 time? Express your answer as a reduced fraction in the form \"A/B\". \n" ); document.write( "

Algebra.Com's Answer #465488 by Edwin McCravy(20055) $\"\"$ $\"About$

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document.write( "You must get one of these 4 cases:\r\n" );
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document.write( "Case 1. Heads first, heads second.\r\n" );
document.write( "Case 2. Heads first, tails second.\r\n" );
document.write( "Case 3. Tails first, heads second.\r\n" );
document.write( "Case 4. Tails first, tails second.\r\n" );
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document.write( "The first 3 cases are cases when there was at least 1 head.\r\n" );
document.write( "Only case 4 contains no heads.\r\n" );
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document.write( "The probability is 3 ways out of 4, or \r\n" );
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document.write( "Edwin

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