Monty Hall Problem

       #14.  In the Monty Hall Quiz show Monty offers the successful candidate another challenge to determine what prize he/she gets. Monty shows the contestant 3 doors, behind one there is a new car and behind the other two there are goats. The contestant chooses one door and then Monty opens one of the other doors revealing a goat. He then offers the contestant the chance of changing his choice.
Should the contestant switch to the other unopened door?
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