Part of the population of 7,750 elk at a wildlife preserve is infected with a parasite. A random sample of 50 elk shows that 4 of them are infected. How many elk are likely to be infected?
Based on the sample, there will likely be
infected elk in the wildlife preserve.

620 elk

Step-by-step explanation:

Since 4 out of every 50 are infected, you first see how many groups of 50 there are in 7,750, so you divide it by 50, which equals 155. Then you multiply 155 by 4 because there are 4 likely infected in each group, and that gets you your answer of 620 elk.

(hope this helps!)

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