Average (sports)
Encyclopedia
In sports, an average of a certain skill denotes the expected value of the skill level of the participant in the given sport
Sport
A Sport is all forms of physical activity which, through casual or organised participation, aim to use, maintain or improve physical fitness and provide entertainment to participants. Sport may be competitive, where a winner or winners can be identified by objective means, and may require a degree...

. It is basically a central tendency that takes into account the various performances of the player and generates an expected performance under typical conditions.
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