Final answer:
The mode for this set of data is brown.
Step-by-step explanation:
The mode for a set of data is the value that appears most frequently. In this case, we have:
- Brown: 12 students
- Blue: 4 students
- Hazel: 8 students
- Green: 2 students
Since brown appears most frequently with 12 students, the mode for this set of data is brown.