Posted by **Lee** on Saturday, January 7, 2012 at 5:13pm.

The population of a county increases at a rate proportional to the existing population. If the population doubles in 20 years, then the factor of probability is

a) 2e^(-30)

b)1/2(ln 20)

c)ln 2

d)1/20(ln 2)

e)ln 20

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