CREATE TABLE table_11682 ("Driver" TEXT, "Constructor" TEXT, "Laps" FLOAT, "Time/Retired" TEXT, "Grid" FLOAT)

What is the average grid for jo siffert?
SELECT AVG("Grid") FROM table_11682 WHERE "Driver" = 'jo siffert'
SELECT AVG("Grid") FROM "table_11682" WHERE "Driver" = 'jo siffert'