Right, lets settle this.
On any attribute, it is scientifically impossible that a control group of both genders will prove even. However, with some, it is likely that the difference will be significant. Others will not.
For example, if I were to take a sufficiently large, random control group of males and females, I would expect the average strength of the males to be significantly higher than that of females. This is not to say all men are stronger than all women, merely that a general trend is observed. This may be due to social pressures, genetics, or both.
A similar experiment concerning intelligence would be difficult to measure. I would venture to predict little difference in I.Q between groups. However, I would expect the E.Q of the females to be significantly higher.
A final experiment focused on a more obscure attribute, such as honesty, would likely prove both groups to be roughly even. One group may score 87.7345 and the other 87.7346, making one technically superior. This is insignificant, and not worth discussion.
To be clear, I have not run the experiments described above. Nobody has. The control groups required would be far too large to be practical.
The point is, while one group may be superior on average, statistics prove nothing about an individual. Insurance companies claim men to be inferior drivers when no data about the individual is known. However, a man with 10 years no claims will receive cheaper insurance than a woman with 173 claims in the same period.
To assume anything about a complete stranger based on gender is sexist.
To assume anything about someone you know based on gender is stupid.
Having said that, I will still only invite my male friends to paintballing.
