Women are dumb:

Many people are aware of sex differences in intelligence, but mistakenly believe this is limited to greater male variability (more male retards and geniuses, more average women), and that men and women have the same average IQ. This pattern is represented by the first graph, variations of which are often posted online.

However, this is not entirely accurate. It is true that men have greater IQ variability, but women also have lower average IQ than men. The male IQ advantage manifests from an early age and continues to increase until IQ plateaus. See images 2 to 5.

"The higher male g average and wider distribution transform into an exponentially increased male–female ratio at the high end of the g distribution, and this largely explains male dominance in society."

Sources:
https://doi.org/10.1016/j.paid.2004.12.011
(Backup link).
https://doi.org/10.1016/j.intell.2015.04.005
(Backup link).