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- Newsgroups: sci.math
- Path: sparky!uunet!comp.vuw.ac.nz!cc-server4.massey.ac.nz!TMoore@massey.ac.nz
- From: news@massey.ac.nz (USENET News System)
- Subject: Re: Probably you know the probability ;-)
- Message-ID: <1992Oct16.013013.29213@massey.ac.nz>
- Organization: Massey University
- References: <1992Oct14.193802.25129@noose.ecn.purdue.edu> <1992Oct14.220009.27453@noose.ecn.purdue.edu>
- Date: Fri, 16 Oct 92 01:30:13 GMT
- Lines: 20
-
- In article <1992Oct14.220009.27453@noose.ecn.purdue.edu>, kavuri@lips.ecn.purdue.edu (Surya N Kavuri ) writes:
- >
- > In article <1992Oct14.193802.25129@noose.ecn.purdue.edu>, kavuri@lips1.ecn.purdue.edu (Surya N Kavuri ) writes:
- > > I am given a "rod" of fixed length l. I took a hammer and
- > > broke it into three parts.
- > >
- > > (a) what is the probability that they form a triangle ?
- > > (b) what is the probability that they form an isoceles triangle ?
-
- > (c) what is the probability that they form an acute-angled traingle ?
- >
- First, assume break points independent and uniform on (0, 1).
-
- (a) 1/4
- (b) 0
- (c) ln(8) - 2
-
- (Sorry, I can't fit the proof in the margin).
-
- Terry Moore
-