to add suspense .He then opens door 3 and shows that it does not contain the car .He then gives you the option to stay with door 1 or swap to door 2.What should you do?The most logical answer is that the probability of the car being behind door 1 is equal to the probability of it being behind door 2,,which is 1/2.Wrong !By swapping to door 2,you actually double your chances of