Yes, but education and prosperity hangs together. Poor people often do not get educated.
Absolutely! In fact, as I see it, it would be extremely difficult to find out how many people would be religious if they had a choice, since they do not.And politics, of course. In many of the poorer countries religion is at least encouraged by the state, if not actually mandated. Islamic countries, both rich and poor, mandate religion and the penalties for apostasy or heresy are as barbaric as they are deadly.
So why do you think that is?In the US, in particular, the religious groups have only recently seen their hold on the education systems being contested and diminished. They continue to fight back, sometimes successfully (Texas, for example). But the trend is still downward. Religious organizations are showing steadily declining memberships, with some losing as much as 70% of those children born into the religion.