Final answer:
The subject of this question is Mathematics and it involves determining whether the given information represents a parameter or a statistic. Therefore, the given question is based on statistics.
Step-by-step explanation:
The subject of this question is Mathematics because it involves the concept of calculating the average annual salary.
We must first understand the definitions of parameters and statistics. A parameter is a numerical value that describes a population, whereas a statistic is a numerical value that describes a sample. In this instance, the average annual salary for 60 of the 172 OHS teachers is based on a sample of teachers, making it a statistic.