Answer: a. 3 million registered voters in the state
Options: a. 3 million registered voters in the state
b. 5,000 registered voters interviewed
c. 53.6 %, or 2,680 voters interviewed who plan to vote for him
d. 46.4%, or 2,320 voters interviewed who plan not to vote for him
Explanation: The population of interest is the group from which a sample set is collected. Here, the 5,000 registered voters is drawn from the pool of registered voters. The people surveyed are representative of the total number of voters. The population of interest here is the 3 million registered voters.
For example, if a survey is carried out to figure out the age that kids start walking, the population of interest is kids in general and not just the children who are surveyed.
