What statistical term is used to describe the average of a set of numbers?

The term used to describe the average of a set of numbers is "mean." The mean is calculated by adding all the numbers in the set together and then dividing that sum by the total number of values in the set. This provides a measure of central tendency, giving an overall idea of where the center of the data lies.

In contrast, the median is the middle value of a data set when the numbers are arranged in ascending or descending order. The mode refers to the number that appears most frequently in a data set. The range indicates the difference between the highest and lowest values in a set. Thus, the mean specifically refers to the calculated average, making it the correct choice among the options provided.