(statistics) The statistical tendency toward a fixed proportion in the results when an experiment is repeated a large number of times; the law of large numbers.

plural of batting average

An arithmetic mean of values biased according to agreed weightings.

(cricket) The number of runs conceded divided by the number of wickets taken, used as a statistic.

(cricket) A statistical estimation of the scoring ability of a batsman; equal to the total number of runs scored divided by the number of times out.

Better than average.

(idiomatic) A hypothetical average or generic individual; the common man (or person, by extension).

(ergodic theory) The average (if it exists) of a function over iterations of T, a measure-preserving transformation on a measure space, starting from some initial point x.

Worse or lower than average.

(sports) The ratio of the numbers of goals scored for and against a team in a series of matches, sometimes used in deciding the team’s position in a table.