There are three closed doors at the conclusion
of a game show. A contestant chooses one of the doors, behind which he
or she hopes lies the GRAND PRIZE. The host of the show opens one of
the remaining two doors to reveal a wimpy prize. The contestant is
then given the choice to stay with the original choice of a door or to
switch and choose the remaining door that the host did not open. The
problem is: Should the contestant stick with the original choice of
doors or switch and choose the other door?