I'm utterly sorry to pose such a dumb question, but: the variance of the values 2, 4, and 6: shouldn't that be 2.67 ? The StatUtils and DescriptveStatistics give me 4.
My calculation (that I checked a dozen times) is: (2-4)^2 * 1/3 + (4-4)^2 * 1/3 + (6-4)^2 * 1/3 --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
