gives me the average of all scores in a set of data while [ Select ] tells me the most frequent score and [ Select ] gives me the middle score. A couple has six children including triplets and two children who are older than the triplets, but different ages. If you use age as a variable, we can say that the triplet's age is the [ Select ] . If the triplets are 2 and the other children are 3, 5, and 6, then 2.50 is the [ Select ] age