Question

how far do us workers travel to get to their jobs? to estimate the average distance workers travel, a website includes a survey where adults can share their daily commute distance. what are the population and sample in the setting?

• the population is all us workers. the sample is adults who respond to the survey.
• the population is all visitors to the website. the sample is adults who respond to the survey.
• the population is all us workers. the sample is the mean distance of adults who respond to the survey.
• the population is all adults who respond to the survey. the sample is the average commute distance of adults who respond

Explanation:

To determine population and sample: Population is the entire group we want to study (all US workers, as we aim to estimate their commute distance). Sample is the subset we actually observe (adults who respond to the survey). Let's analyze options:

• Option 1: Population = all US workers (correct target group), Sample = adults who respond (subset of interest).
• Option 2: Population as website visitors is wrong (we care about US workers, not visitors).
• Option 3: Sample can't be a mean (sample is the respondents, not a statistic of them).
• Option 4: Population as respondents is wrong (population is the larger group we want to infer about, not the respondents).

So Option 1 is correct.

Answer:

A. The population is all US workers. The sample is adults who respond to the survey.