Question

Part of the population of 6,750 elk at a wildlife preserve is infected with a parasite. A random sample of 50 elk shows that 3 of them are infected. How many elk are likely to be infected?

Answer 1

Around 405 elk should be infected with the parasite.

Explanation:

6,750/50=135

135 * 3 = 405

hope this helps :)

Answer 2

405

Explanation:

We can use a ratio to solve

3 infected x infected

------------------ = ----------------

50 sampled 6750 population

Using cross products

3*6750 = 50x

Divide each side by 50

3*6750/50 = x

405