1. A researcher wanted to learn something about the sexual identity of the students at UNCP (e.g., what percent were heterosexual, homosexual, and so on.). The researcher was working with a very limited budget and used the principle of EPSEM to select a group of 200 students to be included in the study. She emailed each of them and asked them to tell her their sexual identity. She gathered a lot of information. For example, she found that 50 of the 200 respondents were homosexual and concluded that about 25% of students at UNCP would claim that they were homosexual.

Identify each of the following elements in this research scenario and explain their importance:

1. Population

2. Sample

3. Parameter

4. Statistic

5. EPSEM

6. Representative