ged ducks Scientist Captures,Tagged,and released 21 ducks as part of a research study.A week later,the scientists returned and found 15 tagged ducks out of the 200 they counted

Question

To the nearest whole number, what is the best estimate of the duck population?

A:200

B:236

C:275

D:280

Answer 1

X/21 = 200/15

X/7 =200/5

5X =1400

X =1400/5 = 280 ducks

Answer is D)