Professor Kramer has decided to measure how happy his students are with his teaching this semester. He is teaching two classes this semester—Psychology and Law and Introduction to Neuroscience. He gives his students a survey.

Refer to Research Study 7.1 to answer the following six questions.

In the above scenario, 43 of 50 Introduction to Neuroscience students and 46 of 48 Psychology and Law students complete the survey. Based on this information, which of the following can Dr. Kramer say?
1.
His sample is representative
2.
His sample is larger than his population
3.
His sample came from his population of interest
4.
His sample is biased