user: Question: Tell me the scoring average for year less than 1998 and wins more than 3
Columns: ['Year', 'Tournaments played', 'Cuts made*', 'Wins', 'Top 10s', 'Best finish', 'Earnings ( $ )', 'Scoring average']
Types: ['real', 'real', 'real', 'real', 'real', 'text', 'text', 'real']
Sample row: [1992.0, 1.0, 1.0, 0.0, 0.0, 'T64', 'n/a', 77.0]
SQL:

assistant: SELECT "Scoring average" FROM "Table" WHERE "Year" < 1998.0 AND "Wins" > 3.0;