SOLUTION: A puzzle in the newspaper presents a matching problem. The names of 10 U.S. presidents are listed in one column, and their vice presidents are listed in random order in the second

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Question 269810: A puzzle in the newspaper presents a matching problem. The names of 10 U.S. presidents are listed in one column, and their vice presidents are listed in random order in the second column. The puzzle asks the reader to match each president with his vice president.

(1) If you make the matches randomly, how many matches are possible?
Number of possible matches

(2) What is the probability all 10 of your matches are correct? (Round your answer to 8 decimal places.)

Probability

Answer by Edwin McCravy(20062) About Me  (Show Source):
You can put this solution on YOUR website!
A puzzle in the newspaper presents a matching problem. The names of 10 U.S. presidents are listed in one column, and their vice presidents are listed in random order in the second column. The puzzle asks the reader to match each president with his vice president.
(1) If you make the matches randomly, how many matches are possible? 
    Number of possible matches    

10! or 3628800

(1) If you make the matches randomly, how many matches are possible? 
    Number of possible matches    


(2) What is the probability all 10 of your matches are correct? (Round your answer to 8 decimal places.)

1%2F10%21+=+1%2F3628800+=+.0000002755731922 which rounds to .00000028
to 8 decimal places.

Edwin