A probability problem: Difference between revisions

From ChanceWiki
Jump to navigation Jump to search
No edit summary
No edit summary
Line 6: Line 6:
</blockquote>
</blockquote>


You might  be interested in trying to solve this problem.  You can check your answer [http://www.dartmouth.edu/chance/ForWiki/here.
You might  be interested in trying to solve this problem.  You can check your answer [http://www.dartmouth.edu/chance/ForWiki/ here].

Revision as of 17:53, 16 July 2005

A Dartmouth student asked his math teacher Dana Williams if he could solve the following problem:

QUESTION: We start with n ropes and gather their 2n ends together.
Then we randomly pair the ends and make n joins. Let E(n)
be the expected number of loops. What is E(n)?

You might be interested in trying to solve this problem. You can check your answer here.