Question

you conduct a poll in which you randomly select 990 registered voters from texas and ask if they approve of the job their governor is doing. what is the population for this study?

choose the correct answer below

a. the population is the 990 people that are interviewed because they were randomly selected
b. the population is the governor of texas because he can change voters opinions
c. the population is all registered voters in the state of texas because this is where the governor lives
d. the population is all registered voters in the state of texas because this is the entire group that is being selected from randomly.
e. the population is the governor of texas because the survey is asking if people are satisfied with him
f. the population is the 990 people that are interviewed because their opinions are known

Explanation:

To determine the population in a study, we identify the entire group the study aims to understand. Here, the poll selects 990 registered voters from Texas (a sample) to learn about registered voters' opinions on the governor. The population is the entire group from which the sample is drawn. Option D correctly states the population is all registered voters in Texas as they are the entire group being sampled from. Option A and F refer to the sample (990 interviewed), not the population. Options B and E incorrectly identify the governor as the population. Option C's reasoning (governor's location) is wrong; the correct reason is the sampling frame.

Answer:

D. The population is all registered voters in the state of Texas because this is the entire group that is being selected from randomly.