Question

Game wardens use experiments to help determine the number of wild horses in a national park. Suppose 40 wild horses are caught, tagged, and released back into the national park. Two weeks later 100 wild horses are caught, 4 of which are found to have tags. Using this information, estimate the number of wild horses in the national park.

1,000 wild horses

36 wild horses

136 wild horses

4,000 wild horses

Answer 1

X = 1,000 wild horses

Explanation:

The rate of finding a tagged horse is 4 out of 100, or 4%. We want the total number of horses such that 4% of that number is equal to 40 horses:

(0.04)*(X) = 40 tagged horses

X = 40/(0.04)

X = 1,000 wild horses