grebrainsize9.gif (30603 bytes)

grebrainsize10.gif (30595 bytes)

grebrainsize11.gif (34855 bytes)

grebrainsize14.gif (30428 bytes)

grebrainsize15.gif (27323 bytes)

grebrainsize1.gif (19243 bytes)

grebrainsize1.gif (19243 bytes)

grebrainsize13.gif (23930 bytes)

grebrainsize1.gif (19243 bytes)

grebrainsize1.gif (19243 bytes)

grebrainsize1.gif (19243 bytes)

grebrainsize1.gif (19243 bytes)

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grebrainsize12.gif (19371 bytes)

The distribution curve of Graduate Record Exam scores by race and sex is here, or download the entire .pdf file from ftp://etsis1.ets.org/pub/gre/250365.pdf

The distribution curve of cranial capacity includes the standard deviation for each sex and race. 

The distribution curve of annual incomes with a standard deviation for each sex and race is estimated to be similar to that for cranial capacities.