user: Question:  what's the average where high score is 120
Columns: ['Player', 'Matches', 'Inns', 'N/O', 'Runs', 'High Score', 'Average', '100', '50', 'Catches', 'Stump']
Types: ['text', 'real', 'real', 'real', 'real', 'real', 'text', 'real', 'real', 'real', 'real']
Sample row: ['H J H Marshall', 11.0, 21.0, 1.0, 1218.0, 168.0, '60.9', 5.0, 7.0, 6.0, 0.0]
SQL:

assistant: SELECT "Average" FROM "Table" WHERE "High Score" = 120.0;