[heihojin]

irchans,

Could you explain your reasoning for both of these solutions?

In the first case, I can understand how one might think that given an amount Y in the first envelope, that the probability that the second envelope contains more money is infinite. Logically, however, it doesn't make sense that you the envelope containing the greater amount of money will always be the second one you choose, even when the probability distribution is unbounded. I can't justify it mathematically, either (although I haven't yet had a calculus-based probability class).

Your second solution I just don't get at all.


heihojin