Some stores and restaurants have "tell us what you think" cards available for customers. Assuming that angry customers are more likely to take the time to fill these out, this is an example of:
A) simple random sampling.
B) stratified sampling.
C) cluster sampling.
D) nonstatistical sampling.

Question

Quizplus · Accepted Answer

This scenario is an example of nonstatistical sampling because the sample (people who fill out the cards) is not randomly selected and is likely biased towards those with strong negative opinions, rather than being a representative sample of all customers.

Some Stores and Restaurants Have "Tell Us What You Think