Answer
The population is the ages of the adults in the United States who own cell phones.
The sample is the ages of the adults in the United States who own Samsung cell phones.
Work Step by Step
The population represents all the possible outcomes which is all the ages of the adults in the United States who own a cellphone. A sample is a subset of a population which would be those who own a Samsung cell phone in the United States. In the Venn Diagram, the sample can be identified as the circle inside the rectangle. The rectangle represents the whole and the circle is the subset.
