Trivia

Subject:
Final hint

Alex Y
Picking at random, Alan will find the car 2/3 of the time, i.e., in four of the six possible arrangements of car, keys, and goat.
His strategy for picking the curtains does not improve or hurt his chance of finding the car, but it does allow us (and Becky) to know the four arrangements that Alan might have picked.

So far, the strategies used allow Becky to find the keys in three of the four arrangements Alan might have picked, so they have a 50% chance of winning the car.

Becky can use a strategy that allows her to find the keys in any of the four arrangements Alan might have picked, so they have a 2/3 chance of winning the car.

© 1998 - 2017 by Ellis Walentine. All rights reserved.
No parts of this web site may be reproduced in any form or by
any means without the written permission of the publisher.

WOODCENTRAL, P.O. BOX 493, SPRINGTOWN, PA 18081