1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Population growth please help

  1. Sep 7, 2010 #1
    For the period from 1900 to 1980, calculate the log base e (ln) of the world population values and plot these values on the vertical axis against the year on the horiontal axis. Draw the best straight line you can through these points and determine its slope, k. What is the exponential equation for this line? Is an exponential a good fit over this 80 year period? If not, what sort of function might do a bit better?

    World population estimates in billions of people:
    Year World
    1650 0.5
    1850 1.1
    1900 1.6
    1910 1.7
    1930 2.0
    1950 2.5
    1960 3.0
    1970 3.6
    1980 4.5
    2000 6.0
  2. jcsd
  3. Sep 7, 2010 #2


    User Avatar
    Science Advisor
    Homework Helper

    Looks like a clear assignment to me.
    What is the problem?
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Threads - Population growth please Date
Calculating "population absurdities" Jan 22, 2018
Math population Word problem Sep 1, 2014
Population inversion Apr 27, 2014
Relative population density of stars and galaxies Feb 19, 2013
Population growth Mar 18, 2005