CREATE TABLE table_40710 ("Location" TEXT, "Control" TEXT, "Type" TEXT, "Enrollment" FLOAT, "Founded" FLOAT)

What is the enrollment number for the public institution in Golden, Colorado founded after 1874?
SELECT AVG("Enrollment") FROM table_40710 WHERE "Control" = 'public' AND "Location" = 'golden, colorado' AND "Founded" > '1874'
SELECT AVG("Enrollment") FROM "table_40710" WHERE "Control" = 'public' AND "Founded" > '1874' AND "Location" = 'golden, colorado'