David Coutts <[EMAIL PROTECTED]> wrote in sci.stat.edu:
>Using the Rule Of 70, a population which grows at 1% per annum doubles in 70
>years. A population which grows at 2 % doubles in 35 years. Both are
>considered fine examples of exponential growth (each at a constant rate of
>growth, producing a lovely exponential curve). The question is, if a
>population grows at variable rates, but always between 1 and 2 % (and thus
>is guarenteed to double in 35 to 70 years) - is this exponential growth?

My knee-jerk reaction, for what it's worth, is "at any given moment, 
yes; overall, no".

But labeling a growth curve is of little value per se. Maybe you 
could tell us a little bit more about why you're asking the question 
and what difference the answer would make?

-- 
Stan Brown, Oak Road Systems, Cortland County, New York, USA
                                  http://OakRoadSystems.com/
"You find yourself amusing, Blackadder."
"I try not to fly in the face of public opinion."
.
.
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