10 Países com o QI médio mais baixo

10 Countries Lowest Average IQ
Research Date: 4.28.2013
Intelligence quotient (IQ abbreviated, general purpose) is a measurement obtained by tests designed to evaluate cognitive abilities (intelligence) of a subject, compared to their age group. The measure of IQ is normalized so that its average value is 100 and has a certain standard deviation as 15.
Intelligence tests have emerged in China in the fifth century, and began to be used scientifically in France in the twentieth century.

Note: In case of ties follows the country classification by letters of the alphabet.

9. Sudan
Average IQ: 72

9. Tanzania
Average IQ: 72

8. Ghana
Average IQ: 71

7. Nigeria
Average IQ: 67

5. Guinea
Average IQ: 66

5. Zimbabwe
Average IQ: 66

4. Democratic Republic of the Congo
Average IQ: 65

3. Sierra Leone
Average IQ: 64

2. Ethiopia
Average IQ: 63

1. Equatorial Guinea
Average IQ: 59

Source: IQ and the Wealth of Nations and statisticbrain.com


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