Question

a researcher interviews shoppers at a local mall. the mall was chosen because it was close to the researchers house.

tell whether the situation describes a voluntary sample, convenience sample, or neither.

a news show asks viewers to participate in an online survey.

tell whether the situation describes a voluntary sample, convenience sample, or neither.

Explanation:

Analyze the first situation

Using the Convenience Sampling knowledge point
The researcher selects subjects who are easy to reach (shoppers at a local mall chosen because it is close to the researcher's house). This represents a convenience sample.

Analyze the second situation

Using the Voluntary Response Sampling knowledge point
The news show asks viewers to actively choose to participate in an online survey. Since the participants self-select to join, this represents a voluntary sample.

Answer:

Question 1

A researcher interviews shoppers at a local mall. The mall was chosen because it was close to the researcher's house.

Tell whether the situation describes a voluntary sample, convenience sample, or neither.
<blank>convenience sample</blank>

Question 2

A news show asks viewers to participate in an online survey.

Tell whether the situation describes a voluntary sample, convenience sample, or neither.
<blank>voluntary sample</blank>