Determine whether each table in Exercises 11–16 is a probability model. If not, clearly explain why it is not a probability model.
14. Majors of students taking introductory statistics
| Major | Probability |
|---|---|
| Business | 0.50 |
| Nursing | 0.20 |
| Social sciences | 0.20 |
| Science | 0.20 |
| Math | −0.10 |