document.write( "Question 856069: If the 26 letters of the alphabet are arranged at random in a row, what is the probability that the letters A and B are next to each other? \n" ); document.write( "

Algebra.Com's Answer #515723 by Edwin McCravy(20060) $\"\"$ $\"About$

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document.write( "The number of ways to arrange the 25 things where \"AB\"\r\n" );
document.write( "is one thing, and the other letters are the other 24 things, is:\r\n" );
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document.write( "{AB,C,D,E,F,...,X,Y,Z} is 25!\r\n" );
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document.write( "The number of ways to arrange the 25 things where \"BA\"\r\n" );
document.write( "is one thing, and the other letters are the other 24 things, is:\r\n" );
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document.write( "{BA,C,D,E,F,...,X,Y,Z} is also 25!\r\n" );
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document.write( "So that 2×25!\r\n" );
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document.write( "out of the number of ways to arrange the 26 things:\r\n" );
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document.write( "{A,B,C,D,E,F,...,X,Y,Z}\r\n" );
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document.write( "which is 26!\r\n" );
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document.write( "Answer:  =  =  =  = \r\n" );
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document.write( "Edwin

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