DwightGooden_earnedRunAverage

Given a predicate that represents a relationship or action between entities, generate a one-sentence description explaining its meaning.  
# Instructions
Focus on describing the relationship, not the entities themselves. 
# Response Format
Begin the description with \' Indicates...\'

Predicate: DwightGooden_earnedRunAverage

Indicates the statistical relationship that specifies Dwight Gooden’s earned run average (ERA), i.e., the average number of earned runs he allowed per nine innings pitched.