MHB What is the long-term percentage of city dwellers?

Click For Summary
The discussion focuses on the movement of populations between urban and rural areas, specifically examining the long-term percentage of city dwellers. Each year, 20% of rural residents move to cities, while 10% of city residents relocate to rural areas. In 2015, 50% of the population lived in cities, with calculations showing that by 2016, this percentage would rise to 55%, and by 2017, it would reach 58.5%. The main question remains how to determine the long-term percentage of city dwellers using transition matrix logic. The conversation emphasizes the need for a mathematical approach to find a stable population distribution over time.
musad
Messages
8
Reaction score
0
Hi, I am having trouble with the following question, I've answered part a but I am not sure about part b:

Suppose each year 20% of people who live in the country move into the city, while 10% of the city people move into the country.
a) If in 2015, 50% of the population live in the cities, what are the population percentages in
(i) 2016
Pcountry= 45%


Pcity= 55%


(ii) 2017
Pcountry= 41.5%


Pcity= 58.5%

b) Find the long-term percentage of city dwellers.
%



 
Physics news on Phys.org
Use the same logic as explained here:http://mathhelpboards.com/advanced-probability-statistics-19/transition-matrix-question-14207.html#post67359
 
There is a nice little variation of the problem. The host says, after you have chosen the door, that you can change your guess, but to sweeten the deal, he says you can choose the two other doors, if you wish. This proposition is a no brainer, however before you are quick enough to accept it, the host opens one of the two doors and it is empty. In this version you really want to change your pick, but at the same time ask yourself is the host impartial and does that change anything. The host...

Similar threads

  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 2 ·
Replies
2
Views
4K
  • · Replies 2 ·
Replies
2
Views
2K
Replies
3
Views
5K
  • · Replies 26 ·
Replies
26
Views
5K
Replies
2
Views
437
Replies
5
Views
5K
  • · Replies 24 ·
Replies
24
Views
4K
  • · Replies 235 ·
8
Replies
235
Views
23K