According to 2008 Department of Justice data, there were almost 13 times more men in U.S. prisons than women, and data from the Death Penalty Information Center show that there were about 65 men on death row for every woman in 2007. In other words, the data clearly show that men are way overrepresented in overall prison populations and among death row inmates.
This is essentially what Larry Summers said which led to his resignation as president of Harvard University:
"It does appear that on many, many different human attributes-height, weight, propensity for criminality, overall IQ, mathematical ability, scientific ability - there is relatively clear evidence that whatever the difference in means - which can be debated - there is a difference in the standard deviation, and variability of a male and a female population."
