UPDATE: I solved the problem.
I used SELECT AVG(winner_goals) + AVG(opponent_goals) FROM games
, the result of which has three more 0’s than SELECT AVG(winner_goals + opponent_goals) FROM games
.
Seems a bit too strict.
UPDATE: I solved the problem.
I used SELECT AVG(winner_goals) + AVG(opponent_goals) FROM games
, the result of which has three more 0’s than SELECT AVG(winner_goals + opponent_goals) FROM games
.
Seems a bit too strict.