user: Question: What is the run rate for rank 4?
Columns: ['Rank', 'Score', 'Overs', 'Run Rate', 'Innings', 'Date', 'Test No.', 'Report']
Types: ['real', 'text', 'real', 'real', 'real', 'text', 'real', 'text']
Sample row: [1.0, '638', 196.0, 3.25, 2.0, '8 March 2013', 2078.0, '(scorecard)']
SQL:

assistant: SELECT "Run Rate" FROM "Table" WHERE "Rank" = 4.0;