Suppose you want to learn how often students of the Faculty of Arts and Sciences of Harvard University visit the gym. You interviewed students of this faculty with an athletic build. Is the sample likely to be representative of the population of interest?
A)Yes, since every individual in the population has an equal chance of being selected into the sample.
B)No, since only students with an athletic build visit the gym.
C)No, since you did not interview students of other faculties.
D)No, since not every individual in the population has an equal chance of being selected into the sample.
E)Yes, since the sample of students with an athletic build is representative of the population of students who visit the gym.

Question

Suppose you want to learn how often students of the Faculty of Arts and Sciences of Harvard University visit the gym. You interviewed students of this faculty with an athletic build. Is the sample likely to be representative of the population of interest? ​
A)Yes, since every individual in the population has an equal chance of being selected into the sample.
B)No, since only students with an athletic build visit the gym.
C)No, since you did not interview students of other faculties.
D)No, since not every individual in the population has an equal chance of being selected into the sample.
E)Yes, since the sample of students with an athletic build is representative of the population of students who visit the gym.

Quizplus · Accepted Answer

The sample is biased because it only includes students with an athletic build, ignoring those who may visit the gym less frequently or not at all, thus not giving every individual an equal chance of selection.

Suppose You Want to Learn How Often Students of the Faculty