| [ QuizWit ] in KIDS 글 쓴 이(By): outsider (하얀까마귀) 날 짜 (Date): 2010년 02월 13일 (토) 오후 09시 45분 16초 제 목(Title): 엊그제 본 문제 Alice secretly picks two different real numbers by an unknown process and puts them in two (abstract) envelopes. Bob chooses one of the two envelopes randomly (with a fair coin toss), and shows you the number in that envelope. You must now guess whether the number in the other, closed envelope is larger or smaller than the one you’ve seen. Is there a strategy which gives you a better than 50% chance of guessing correctly, no matter what procedure Alice used to pick her numbers? 두 봉투의 역설과는 다릅니다. -- @< //) `//<_ 하얀까마귀 - http://outsider.egloos.com |