» CC HOME » FORUM HOME

 College Confidential hard problem... help please
 User Name Remember Me? Password New User

Welcome to College Confidential!
The leading college-bound community on the web
Join for FREE now, and start talking with other members, weighing in on community polls, and more.

Also, by registering and logging in you'll see fewer ads and pesky welcome messages (like this one)!
 Discussion Menu »Discussion Home »Help & Rules »Latest Posts »NEW! CampusVibe™ »Stats Profiles Top Forums »College Chances »College Search »College Admissions »Financial Aid »SAT/ACT »Parents »Colleges »Ivy League Main CC Site »College Confidential »College Search »College Admissions »Paying for College Sponsors SuperMatch - The Future of College Search! CampusVibe - Almost As Good As A Campus Visit!
 10-20-2004, 03:42 PM #1 New Member   Join Date: Oct 2004 Posts: 1 hard problem... help please Problem: Three people leave identical coats in a checkroom. When the people check out, the 3 coats are distributed at random to the 3 people. Whats probability that none of the people recieve the correct coat. plz respon asap. Thx Reply
 10-20-2004, 03:52 PM #2 Junior Member   Join Date: Oct 2004 Posts: 175 2/3* 1/2* 1/1= 1/3 You take the number of favorable outcomes over the total outcomes and multiply them together because the probabilities are dependant on one another. That explanation might not make sense but that is the right answer. Reply
 10-20-2004, 03:55 PM #3 Junior Member   Join Date: Aug 2004 Posts: 171 Coats are labeled A, B, C Persons: A B C Coats: A B C A C B B A C B C A C A B C B A The only ones that don't match up to the top are BCA and CAB, 2 out of 6 combinations, so the probability is 1/3. Yeah, uhh, this is the long way. Reply

 Bookmarks