CREATE TABLE table_204_794 (id DECIMAL, "iec\ world plugs\ Type" TEXT, "standard" TEXT, "power\ rating" TEXT, "earthed" TEXT, "polarised" TEXT, "fused" TEXT, "insulated\ pins" TEXT, "europlug\ compatible" TEXT)

how many total standards are there for type b plugs ?
SELECT COUNT("standard") FROM table_204_794 WHERE "iec\nworld plugs\nType" = 'b'
SELECT COUNT("standard") FROM "table_204_794" WHERE "iec\nworld plugs\nType" = 'b'