# Deer Population

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• May 1st 2009, 01:10 PM
magentarita
Deer Population
At a local national park,42 deers were spotted and tagged one day. One week later, 41 were spotted and of those 5 had been tagged the week before. Predict deer population.
• May 1st 2009, 02:06 PM
mr fantastic
Quote:

Originally Posted by magentarita
At a local national park,42 deers were spotted and tagged one day. One week later, 41 were spotted and of those 5 had been tagged the week before. Predict deer population.

The maximum likelihood estimate boils down to equating the proportions of tagged deer. Let x be the size of the population. Then:

$\displaystyle \frac{42}{x} = \frac{5}{41}$.

Solve for x.
• May 2nd 2009, 02:56 AM
magentarita
I had....
Quote:

Originally Posted by mr fantastic
The maximum likelihood estimate boils down to equating the proportions of tagged deer. Let x be the size of the population. Then:

$\displaystyle \frac{42}{x} = \frac{5}{41}$.

Solve for x.

I had no idea that this could be solved by setting up a proportion.