Here is what the data that the means are drawn from actually tell us:
Men and women can be found at virtually every level of interest in casual sex. At the right-hand tail of the distribution, only a small number of people are strongly interested in casual sex; however, of these people, more are men than women. At the left-hand tail, only a small number of people are strongly <I>dis</I>interested in casual sex; however, of these people, more are women than men. Most people — men <I>and</I> women — fall somewhere in between. If you were to choose one man and one woman at random, it would be somewhat more likely that the man would have higher SO. However, you wouldn't want to bet your life savings on it. Around a third of the time — i.e., closer to 50% than to 0% — the woman would have higher SO.
The Ape that Kicked the Hornet's Nest (2013)
“In some domains, women are more sexually selected than men; one could say in these cases that women have the larger “peacock’s tail.” An example can be found in the domain of physical attractiveness. Women are typically rated as better looking than men, by both men and women. The difference is plausibly a consequence of the fact that, although both sexes care about good looks in a mate, on average, men care somewhat more. This means that, since this sex difference first evolved, there has been a somewhat stronger selection pressure on women than men for physical attractiveness — the opposite of what we find in peacocks.”
(p. 149)
The Ape that Thought It Was a Peacock: Does Evolutionary Psychology Exaggerate Human Sex Differences? (2013)
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Steve Stewart-Williams 63
1971Related quotes

Sexuality, Pornography, and Method: "Pleasure under Patriarchy" (1989) Ethics, Vol. 99, No. 2 pp. 314-346

Source: Why Men Earn More (2005), p. 79.
Source: The Ape that Thought It Was a Peacock: Does Evolutionary Psychology Exaggerate Human Sex Differences? (2013), p. 157