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Ade Adesida
Homework 9
Physics 202
1.Before the information from the king, the hero's chance of survival after picking
door I was two out of three, since there were two doors which contained the lady out
of three possible doors, which means 2 out of three times, his first choice would lead
to survival and one out of three times, it won't. His aggregate chance of survival is
2/3. However, after one of the survival doors is eliminated, his aggregate survival falls
solely on his first choice, and there is now a 2/3 chance his first choice is right, while
there is still the 1/3 chance his choice is wrong. Therefore, the hero is wrong. There is
still a 2 out of 3 chance his choice will lead to survival. He should not be worried.
2.a) Well you can pick any card from the first deck, so that doesn't matter. The
problem comes when trying to pick a card from the second deck to match or not
match this first card, and since 51 of the 52 cards in the second deck won't match
the card from the first deck, the probability of picking two non matching cards is
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This note was uploaded on 05/10/2008 for the course PHYS 1202 taught by Professor Stein,p during the Spring '07 term at Cornell University (Engineering School).
 Spring '07
 STEIN,P
 Physics, Work

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