On Apr 9, 5:08*pm, George Plimpton wrote:

Correct. *The point that Derbyshire was making is that when encountering
a black "civil" "servant" in a government office, a rational expectation
is that employee will be less intelligent than if she were white, and so
less likely to be competent. *Based on the different means and the
distribution of intelligence, that's undoubtedly true.

It may have nothing to do with the distribution of intelligence. It
may be that a Black civil servant got the job because of affirmative
action and has no reason to believe that there will be any affect on
job progression caused by being rude.

Dan