The relationship between IQ and income:

The relationship between IQ and wealth:

From Zagorsky, Jay. 2007. Do you have to be smart to be rich? The impact of IQ on wealth, income and financial distress. Intelligence 35: 489-501.
Thanks to Conrad H.
Images for use in sociology (and related) classes.
The relationship between IQ and income:

The relationship between IQ and wealth:
