Table: 2007 - 08 new jersey devils season
Question: What was the average difference in goals scored between New Jersey Devils and their opponents in home games during the 2007-08 season?
Step 1 (Operation, Indexing): score
Step 2 (Operation, Filter): home
Step 3 (Reasoning, Aggregating): AVG, gained and lost scores
Step 4 (Reasoning, Arithmetic): -, average gained and lost scores
Answer: 0.5