/biz/ is the most retard board all over 4chan. They have no mathematical skills and science understanding. How broadly does your knowledge to be capable of/biz/?

Average IQ of anons in every 4chan board:
/Sci/ 200+ IQ Genius
/Biz/ 69- Retarded
/adv/ 100+ Normal IQ
/b/ - 210 IQ Megamind
Source: my intuition

What's yours?