Fun Fact:
- If a data distribution is approximately normal then about 68 percent of the data values are within one standard deviation of the mean (mathematically, μ ± σ, where μ is the arithmetic mean), about 95 percent are within two standard deviations (μ ± 2σ), and about 99.7 percent lie within three standard deviations
nuther fun fact
- An intelligence quotient (IQ) is a total score derived from several standardized tests designed to assess human intelligence. ... By this definition, approximately two-thirds of the population scores are between IQ 85 and IQ 115
100 IQ IS the mean.
fifty percent of the population has an IQ lover than 100...fifty percent higher.
Apparently the "2/3 of the population" range depends upon both race and gender.
"An IQ gap of at least 1.1 SDs for American Blacks (average 24% White admixture)
and Whites has been present for the entire 100+ year history of IQ tests. The gap
between African Blacks and Whites is 2.0 SDs." (Radical Capitalism article)
That means that the mean IQ for African Blacks is within the lower 2.5% tail of the distribution for Whites.
I do intend to study the refereed article carefully. But if the Radical Capitalist article is summarizing it honestly, it means that the White Supremacists are actually scientifically correct. The possibility, and its implications, stun me.