"Overall average" refers to the total or general average from a collection or group of items or values. It is the combined average that takes into account all the individual averages in order to provide a broader or more comprehensive understanding.
The ratings are compiled into one overall average rating with the lowest and highest values taken out to account for variance. (gonintendo.com)
The second most - frequently listed trait, and fourth in overall average, was that school leaders need to be trustworthy and straight with students and staff. (educationworld.com)
While overall average income was down, more than half of respondents reported receiving a pay increase during the past 12 months. (medreps.com)