[Offtopic] IBM Monthly Puzzle

[McDonald, Debra A1]

does anyone know the legal side of us sharing this site with students???  I=
 have several very talented and eager IT students coming up  in the years wh=
o could benefit form this.  So was wondering if anyone has asked about the l=
egal side of putting a link to this site from intranet or internet pages so=
 students have easy access..
 
cheers
Debra McDonald
Network Manager
Lyndhurst Secondary College
Cranbourne
(03) 5996 0144

________________________________

From: offtopic-bounces at edulists.com.au on behalf of stephen at melbpc.org.au
Sent: Sat 03/03/07 3:12 AM
To: link at anu.edu.au; oz-teachers at cobia.ed.qut.edu.au; edunet at schools.net.au;=
 offtopic at edulists.com.au
Subject: [Offtopic] IBM Monthly Puzzle



IBM Research: Welcome to our Monthly Puzzles

 <http://www.research.ibm.com/ponder/>

You are cordially invited to match wits with some of the best minds in
IBM Research.

Seems some of us can't see a problem without wanting to take a crack at
solving it. Does that sound like you? Good. Forge ahead and ponder this
month's problem.

We'll post a new one every month, and allow two to three weeks for you to
submit solutions (we may even publish submitted answers, especially if
they're correct). We won't reply individually to submitted solutions but
every few days we will update a list of people who answered correctly.
Towards the end of the month, we'll post the answer.

Ponder This Challenge:

Puzzle for February 2007.

Consider the following two person game.

Each player receives a random number uniformly distributed between 0 and
1. Each player can choose to discard his number and receive a new random
number between 0 and 1. This choice is made without knowing the other
players number or whether the other player chose to replace his number.

After each player has had an opportunity to replace his number the
numbers are compared and the player with the higher number wins.

What strategy should a player follow to ensure he will win at least 50%
of the time?

--

Cheers people
Stephen Loosley
Victoria, Australia
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