'batting average' definitions:
Definition of 'batting average'
(from WordNet)
noun
(baseball) a measure of a batter's performance; the number of base hits divided by the number of official times at bat; "Ted Williams once had a batting average above .400" [syn: batting average, hitting average]
noun
(an extension of the baseball term) the proportion of times some effort succeeds; "the salesman's batting average was 7 out of 12"