CREATE TABLE table_736 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" FLOAT, "Result" TEXT, "Candidates" TEXT)

how many first elected with district being north carolina 2
SELECT COUNT("First elected") FROM table_736 WHERE "District" = 'North Carolina 2'
SELECT COUNT("First elected") FROM "table_736" WHERE "District" = 'North Carolina 2'