batting 0.1 is a 90% failure rate, as you only hit 10% of the pitches thrown at you.
Source: Wikipedia
"In
baseball,
batting average (
BA) is determined by dividing a player's
hits by their total
at-bats. It is usually rounded to three decimal places and read without the decimal: A player with a batting average of .300 is "batting three-hundred". If necessary to break ties, batting averages could be taken beyond the .001 measurement. In this context, .001 is considered a "point", such that a .235 batter is 5 points higher than a .230 batter."