Source: Parra, E. J., Kittles, R. A., & Shriver, M. D. (2004) . Implications of correlations between skin color and genetic ancestry for biomedical research. Nature Genetics, 36, S54-S60.
-The graphs shown indicate the range of melanin amounts in populations from four different geographic regions. Not all populations across the globe have the same number of genes or alleles controlling skin color. Which population is likely to be the most genetically diverse in terms of genes affecting skin color?
Definitions:
Tchebysheff's Theorem
A statistical theorem that specifies the minimum proportion of observations within a certain number of standard deviations from the mean for any distribution shape.
Empirical Rule
A statistical theorem stating that in the case of a normal distribution, almost entirely all the data will be situated within three standard deviations away from the average.
Population Mean
The average or central value of a set of numbers or measurements in the entire population under study.
Sample Mean
The average value of a sample set of numbers, which serves as an estimate of the population mean.
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