Answer
1.87 million.
Work Step by Step
Net population growth is calculated by:
$\frac{\Delta N}{\Delta t}=bN-mN$
Filling in the information from the question, we obtain:
$\frac{\Delta N}{\Delta t}=(\frac{14}{1000})(311,000,000)-(\frac{8}{1000})(311,000,000)$
$\frac{\Delta N}{\Delta t}=1,870,000$
You would need data from more than just one year to determine if the growth was exponential.
