NounSingular population Plural populations population (plural populations)
Derived terms
Related termsFrom Wiktionary under the GNU Free Documentation License. In biology, a population (from Latin populationis), is the collection of inter-breeding organisms of a particular species; in sociology, a collection of human beings. Individuals within a population share a factor may be reduced by statistical means, but such a generalization may be too vague to imply anything. Demography is used extensively in marketing, which relates to economic units, such as retailers, to potential customers. For example, a coffee shop that wants to sell to a younger audience looks at the demographics of an area to be able to appeal to this younger audience. From Wikipedia under the
GNU Free Documentation License How do I do this population growth problem, using the logistic equation, with differential equations? Q. Consider a rabbit population P(t) satistying the logistic equation. If the intial population is 120 rabbits and there are 8 births per month and 6 deaths per month occurring at t=0, how many months does it take for P(t) to reach 95% of the limiting population M? Asked by Larry L - Wed Nov 5 20:22:34 2008 - - 1 Answers - 0 Comments A. The differential form of the logistic equation is: dP/dt = r*P - (r/M)*P^2 where P is the population as a function of time r is the growth rate M is the carrying capacity (the limiting population) In the above equation, the first term on the right hand side represents unfetttered exponential growth of a population (i.e., the birth rate), while the second term represents the effects of competition and death. We can equate the first term with the birth rate to find the value of r for this problem: 8 rabbits/month = r*P(0) = r*120 rabbits r = 1/(15 month) Now equate the second term with the death rate to find M: 6 rabbits/month = 1/((15 month)*M) * (120 rabbits)^2 M = 160 rabbits The solution to the logistic differential equation is: [cont.] Answered by hfshaw - Thu Nov 6 16:13:49 2008 How does the population paradox work in apportionment? Q. I know what the population paradox is, but how does it work? Can someone give me an actual example with real numbers? I've read the Wikipedia article and so forth. All it says is "in the 1900s, Virginia lost a seat to Maine as a result of its population growing faster than Maine's". That's just the definition of the paradox all over again. I want an example with real numbers. Asked by Arthur T - Wed Jun 27 15:00:16 2007 - - 1 Answers - 0 Comments A. Read this. It gives real examples of when this has really happened in the U.S. Answered by C-Wryte - Wed Jun 27 15:06:53 2007 What would happen if human population increased drastically?
Q. Let's say scientist were to find a way to extend the human life span. What would be the consequences? Population would increase and would lead to what? Asked by Pedro Figueroa F - Sat Apr 25 12:12:06 2009 - - 7 Answers - 0 Comments A. We'd die off due to overpopulation. There are tons of problems that can be listed because of being overpopulated but I think you get the idea. Answered by brat - Sat Apr 25 12:34:23 2009 From Yahoo Answer Search: "population"  news.google.com Los Angeles Times Environmentalists tend to avoid the topic of population control. Too touchy. But the politically incorrect issue is becoming unavoidable as the global ... Family planning a major environmental impact EurekAlert (press release) Useful Tip For Environmentally-Conscious: Have Fewer Kids Willamette Week all 20 news articles » news.google.com Gulf Daily News THIRTY per cent of Bahrain's population are expected to become infected with swine flu within the next ... news.google.com UroToday To determine, within the UK, the stage and grade of prostate cancers that would be found through population -based prostate specific antigen (PSA) testing ... and more » From Google News Search: "population"  eugenicsarchive.org 611px x 756px | 86.10kB [source page] From Yahoo Image Search: "population"  tngunowners.com Linoge Sat, 01 Aug 2009 16:26:17 GM So this stemmed out of a very boring afternoon, and has since grown a little more... complex: The full explanation is here , but the numbers pretty.  bizreport.com unknown Mon, 27 Jul 2009 11:29:46 GM Not only does China have the largest . population. of all countries on earth, it now also has the largest online . population. , too, according to the country's government-sanctioned Internet Network Information Center.  nordicdervish.wordpress.com Nima Dervish ue, 28 Jul 2009 18:09:52 GM For the first time, the womens rights activists, despite of their internal differencies of opinions, are participating in common and unified activities to speak the needs of half of the . population. . And the candidates display themselves ... From Google Blog Search: "population" |
