A school cafeteria wants to survey a random sample of 50 students about the quality of food. During one lunch period, every 5th student who walks through the cafeteria door is surveyed until 50 students are selected. Which of the following statements is true about this sample?
Answer
A
This is neither a random sample nor a simple random sample.
B
This is a random sample, but it is not a simple random sample.
C
This is not a random sample, but it is a simple random sample.
D
This is a random sample, and it is a simple random sample.