Question

question 7 1 pts ch 8* a state representative wants to know how voters in his district feel about enacting a statewide smoking ban in all enclosed public places, including bars and restaurants, as well as several other current statewide issues. he mails a questionnaire addressing these issues to an srs of 800 voters in his district. of the 800 questionnaires mailed, 152 were returned. the sample is
all voters in his district.
the 800 voters receiving the questionnaire.
the 152 voters returning the questionnaire.

Explanation:

To determine the sample, we recall that a sample is the subset of the population from which data is actually collected. The population here is all voters in the district. The state representative mailed questionnaires to 800 voters (an SRS), but only 152 returned them. The sample is the group from which we get responses (the data), so it's the 152 voters who returned the questionnaire. The 800 voters are the selected sample frame, but the actual sample with data is those who responded. The "all voters" is the population, not the sample.

Answer:

the 152 voters returning the questionnaire.