How far do US workers travel to get to their jobs? A researcher would like to collect information on the commute distance traveled by workers and considers many methods for collecting data. Which of the following methods represents a voluntary response sample? Workers are invited to share their daily commute distance on a website.
Workers at a large company are each asked to share their daily commute distance.
The researcher stands in a public area and asks each adult to share their daily commute distance.
The researcher takes a random sample of adults from a large town and asks each to share their daily commute distance.