Final answer:
The mode of the number of pets owned by the classmates is 0.
Step-by-step explanation:
The mode is the value that appears most frequently in a data set. In this case, the given data set represents the number of pets owned by your classmates. To find the mode, we look for the value that occurs most often.
In the given data set, we have:
8 classmates with 0 pets
5 classmates with 1 pet
3 classmates with 2 pets
4 classmates with 3 pets
The mode is the value with the highest frequency, which is 0 pets. Therefore, the mode of the number of pets owned by your classmates is 0.