Question: World population With data from the International Data Base of the U.S. Bureau of the Census, the accompanying figure shows a scatter plot of actual or projected world population (in billions) in 5-year increments from 1950 to 2050 (x = 0 in 1945). Which of the following functions would be the best model: exponential growth, exponential decay, logarithmic, or logistic? Explain.
![2328_1.png](https://secure.tutorsglobe.com/CMSImages/2328_1.png)