**A deer population is
declining with a decay constant of magnitude 0.327 year.
After 6.00 years,**
**(a) by what factor has the population
declined?**

Here, the ratio of final population to inital population will be less than one (1). If, for instance, it were 0.2, then the population would have decreased by a factor of 5 (because 0.2 = 1/5). That is, for every 5 original animals, we end up with only one.

If you start with 100 animals, then after 6 years, there would be 100/7.11 = 14.1 deer. Round this off to 14, and calculate the percentage decline in the population.

Try it before going to the solution.