Ilorazy inteligencji IQ
World IQ Figures: A Complete Chart with Notes and Comments
Lasha Darkmoon — Feb 11, 2018
http://www.thetruthseeker.co.uk/?p=165564
Średni IQ:
https://files.brightside.me/files/news/part_34/340760/14562760-25322610-62-0-1496410552-1496410555-650-1-1496410555-650-47e89f213e-1496430065.jpg