While doing research on a lake, biologists tagged 200 walleye. Later, they captured 160 walleye, of which 16 had tags. What is the BEST estimate for the walleye population?

Responses
A 3,000
B 2,000
C 2,600
D 2,300

9 answers

We can use a proportion to estimate the population:

(known tagged population / total number recaptured) = (total population / sample recaptured)

Plugging in the values we know:

(200 / 16) = (x / 160)

Solving for x:

x = 200 * 10

x = 2,000

Therefore, the BEST estimate for the walleye population is option B, 2,000.
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