document.write( "Question 907858: Social Security Numbers A Social Security number is used to identify each resident of the United States uniquely. The number is of the form xxx–xx–xxxx, where each x is a digit from 0 to 9.
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document.write( " (a)
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document.write( " How many Social Security numbers can be formed?
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document.write( " (b)
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document.write( " What is the probability of correctly guessing the Social Security number of the president of the United States? \n" );
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Algebra.Com's Answer #550679 by Fombitz(32388)![]() ![]() You can put this solution on YOUR website! a)Each place can hold one of 10 digits. \n" ); document.write( "There are 9 places. \n" ); document.write( " \n" ); document.write( "b) Well you know one SSN, yours, so you know it can't be that one. That improves your odds. \n" ); document.write( " \n" ); document.write( "Still it's a pretty small number. \n" ); document.write( " \n" ); document.write( " |