いいところ出身かもしれんが・・・

 

この値が通常のIQと同じなら、７０以下が知的障害の目安だから、サハラ以南はなかなか厳しい。 https://t.co/cHwCdXfyix

— buvery (@buvery) September 22, 2021

 10 Countries with the Lowest Reported IQs

In 2002 a pair of professors, Richard Lynn and Tatu Vanhanen, published a controversial book called IQ and the Wealth of Nations. The book was, unsurprisingly, considered controversial as it attempted

BY DANIEL R DEAKIN

PUBLISHED MAY 18, 2014

 Nine out of the 10 countries listed are in Africa, where in many nations education is often interrupted by famine, civil unrest and war

Regardless of the potentially sinister undertones of the professors' work, there is an obvious point to be made when taking this list into account. Lack of money, and the subsequently poor funding of a country's education system, is the real reason that the following nations feature on this list.

要するに、飢饉や地域紛争、戦争などで、教育がしっかりしていない、ということじゃないの？

Race and intelligence
From Wikipedia,

さらに、人種や出身によって多少知能指数が違ったとしても、特定の出身、人種のこの人のIQが高いかどうかわからない。

Countries by IQ - Average IQ by Country

For example, Singapore has the highest IQ but is not considered the smartest nation in the world. That honor goes to Japan, which is ranked more highly in school test rankings and the number of past Nobel Prizes awarded.

日本人は最優秀だけど、おれのIQは低いし頭も悪い。