document.write( "Question 1180289: Find the probability for the experiment of tossing a coin three times. Use the sample space
\n" ); document.write( "S = {HHH, HHT, HTH, HTT, THH, THT, TTH, TTT}.\r
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Algebra.Com's Answer #809912 by ikleyn(52800) $\"\"$ $\"About$

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document.write( "In the given sample space, count the number of 3-letter words, containing at least one letter H.\r\n" );
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document.write( "This number is 7, so your answer is  .\r\n" );
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document.write( "By the way, this event (getting at least one head) is the complement to the event \"no head\",\r\n" );
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document.write( "so you can get the same answer by another way . . . \r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved, answered and explained.\r
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