Question

Travis asked the students at his lunch table if they are allowed to stay up later on weekend nights than on weeknights. He concluded that most middle school students are allowed to stay up later on weekend nights. Which of the following best describes Travis's Conclusion?

A. It is invalid because the survey was conducted only during the week.
B. It is invalid because the sample is random.
C. It is invalid because each person in the population was not surveyed
D. It is invalid because the sample is not random and does not reflect the entire population..

Answer 1

I find it to be D.

Answer 2

Am i right?