CREATE TABLE table_6290 ("Player" TEXT, "Result" TEXT, "Appeared" FLOAT, "RR W\\u2013L" TEXT, "RR W Rate" FLOAT)

What's the total appeared that has an RR Rate less than 0.17?
SELECT SUM("Appeared") FROM table_6290 WHERE "RR W Rate" < '0.17'
SELECT SUM("Appeared") FROM "table_6290" WHERE "RR W Rate" < '0.17'