
Probability and Statistics Basic Probability and Statistics Math Forum 
 LinkBack  Thread Tools  Display Modes 
May 1st, 2018, 09:40 AM  #1 
Newbie Joined: May 2018 From: United States Posts: 3 Thanks: 0  Question for Odds
Hi I'm in need of some Math geniuses to help me out with a question. I'm sure I will mess this question up so I apologize. Question: What are the odds that 2 Strangers, living in a population of 250, would move every 2 years to same new Counties, for 8 years. The counties all have about 1,000,000 population. I'm sure this is going to need many variables to determine odds, but is there an equation before adding variables that I could use first? 
May 1st, 2018, 10:22 AM  #2 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,415 Thanks: 1025  
May 1st, 2018, 01:00 PM  #3 
Global Moderator Joined: May 2007 Posts: 6,759 Thanks: 696 
How many counties are there? Are you asking about 2 specific strangers or just any people moving?

May 2nd, 2018, 05:00 AM  #4 
Newbie Joined: May 2018 From: United States Posts: 3 Thanks: 0 
5 Counties in all the first County being 250 where started. 1,000,000 in the other 4. Let me know what other Variable is neccessary. Thanks for any help.

May 2nd, 2018, 01:51 PM  #5 
Global Moderator Joined: May 2007 Posts: 6,759 Thanks: 696 
"2 strangers in a population of 250". Are you asking about 2 particular people or just any pair? Are all people moving? Are all people strangers to each other? You need to clarify what you intended.

May 2nd, 2018, 02:06 PM  #6 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,415 Thanks: 1025 
PLUS WHY is the population of the counties important ? This is either a badly worded problem or a joke... 
May 3rd, 2018, 04:34 AM  #7 
Newbie Joined: May 2018 From: United States Posts: 3 Thanks: 0 
I'm sorry it is badly worded. I'm just trying to get a simple method of calculating the odds of 2 people who don't know each other and never meet following the same path at the same time, 6 times in a row.

May 3rd, 2018, 07:50 AM  #8  
Senior Member Joined: Sep 2015 From: USA Posts: 2,430 Thanks: 1315  Quote:
The probability that such a set of moves would happen by chance is infinitesimal.  
May 3rd, 2018, 08:24 AM  #9 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,415 Thanks: 1025  

Tags 
odds, question 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
a question on odds  karen1103  Algebra  2  November 27th, 2013 02:22 PM 
Grid Based Poker odds question  convicsik  Advanced Statistics  1  February 12th, 2012 03:38 PM 
a poker hand odds (very tough question)  pokerjunkie  Advanced Statistics  5  August 29th, 2009 05:52 PM 
[Question] The odds of 1/29^31  Fenrir  Advanced Statistics  4  June 7th, 2009 10:48 AM 
Probabilty/Odds Question  dan400  Algebra  1  December 3rd, 2008 04:12 AM 