Batting average

From Cricipedia

Batting average is a statistic which measures the performance of a batsman, it is calculated by dividing the total number of runs by the number of times he is dismissed. Since the number of runs a player scores and how often he gets out are primarily measures of his own playing ability, and largely independent of his team mates, batting average is a good metric for an individual player's skill as a batsman.

Career records for batting average are usually subject to a minimum qualification of 20 innings played, in order to exclude batsmen who have not played enough for their skill to be reliably assessed. Under this qualification, the highest Test batting average belongs to Australia's Sir Donald Bradman, with 99.94.