>“For young women the problem in navigating sexuality and relationships is still gender inequality,” says Elizabeth Armstrong, a professor of sociology at the University of Michigan who specializes in sexuality and gender. “Young women complain that young men still have the power to decide when something is going to be serious and when something is not—they can go, ‘She’s girlfriend material, she’s hookup material.’…
90% of women want to sleep with 10% of men. Men are far less picky. Even the best looking of men has been a whale-rider in his time. Women: Is he rich? Good looking? Do other women want him? Men: Will she sleep with me? Once you understand that, all of the rest of this makes sense.
I hope people are not confused when they see that 90% + 10% = 100%.
They are measuring different things, that phrase (and it's probably incorrect for this very reason) is misleading in that it implies there is a 100%, that it encompasses all the women and all the men. (edits - another comment in this thread gives 80% and 20% with a reference)
A possible less misleading phrase would be 90% of women do not want to sleep with 90% of men.